6380

Number
$6380$ (six thousand, three hundred and eighty) is:


 * $2^2 \times 5 \times 11 \times 29$


 * The $18$th integer $m$ after $1$, $2$, $3$, $11$, $\ldots$, $154$, $320$, $340$, $399$, $427$, $872$, $1477$ such that $m! + 1$ is prime