Sam finally discovered the Hidden Tower this week and wanted to purchase an item. When he went to the Neopian National Bank, however, he realized he had forgotten his PIN. He searched his inventory for a special note he had written to himself and he was able to remember his PIN again thanks to the clues provided.
If the clues written on the notes are as follows:
The PIN is in the standard format of four digits.
None of the digits are the same.
The PIN is comprised entirely of even numbers. Yet, both numbers 22 and 194 go into the PIN exactly.
What is Sam's PIN?