628

Number
$628$ (six hundred and twenty-eight) is:
 * $2^2 \times 157$


 * The $52$nd untouchable number after $2$, $5$, $52$, $88$, $96$, $120$, $124$, $\ldots$, $530$, $540$, $552$, $556$, $562$, $576$, $584$, $612$, $624$, $626$