Number to text (not quite perfect)

gistfile1.scala

object numbertext {
	val singleDigits = Array("zero", "one","two","three","four","five","six","seven","eight","nine")
                                                  //> singleDigits  : Array[String] = Array(zero, one, two, three, four, five, six
                                                  //| , seven, eight, nine)
	val teens = Array("ten","eleven","twelve","thirteen","fourteen","fifteen","sixteen","seventeen","eighteen","nineteen")
                                                  //> teens  : Array[String] = Array(ten, eleven, twelve, thirteen, fourteen, fift
                                                  //| een, sixteen, seventeen, eighteen, nineteen)
	val tens = Array ("","","twenty","thirty","fourty","fifty","sixty","seventy","eighty","ninety")
                                                  //> tens  : Array[String] = Array("", "", twenty, thirty, fourty, fifty, sixty, 
                                                  //| seventy, eighty, ninety)
	
  def numberText(number: Int): String = {
  	def toDigit (c: Char, a: Array[String]): String = a(c - '0')
  	def helper (ns: String): String = ns.length match {
  		case l if l > 3 =>
  			val (high, low) = ns.splitAt (l - 3)
  			helper(high) + " thousand " + helper(low)
  		case l if l == 3 =>
  			val (high, low) = ns.splitAt(l - 2)
  			helper(high) + " hundred " + helper(low)
  		case l if l == 2 => if (ns(0) == '1') {
  			toDigit(ns(1), teens)
  		} else {
  			toDigit(ns(0), tens) + " " + toDigit(ns(1), singleDigits)
  		}
  		case l if l == 1 => toDigit(ns(0), singleDigits)
  		case l if l == 0 => ""
  	}
  	helper(number.toString)
  }                                               //> numberText: (number: Int)String
  
  numberText(1462)                                //> res0: String = one thousand four hundred sixty two
}

To be perfect I'd like one thousand four hundred AND sixty two