454

Number
$454$ (four hundred and fifty-four) is:


 * $2 \times 227$


 * The $19$th Smith number after $4$, $22$, $27$, $58$, $85$, $94$, $121$, $166$, $202$, $265$, $274$, $319$, $346$, $355$, $378$, $382$, $391$, $438$:
 * $4 + 5 + 4 = 2 + 2 + 2 + 7 = 13$