40,585

Number
$40 \, 585$ (forty thousand, five hundred and eighty-five) is:


 * $5 \times 8117$


 * The $4$th and last factorion base $10$ after $1, 2, 145$:
 * $40 \, 585 = 4! + 0! + 5! + 8! + 5!$