4,194,304

Number
$4 \, 194 \, 304$ (four million, one hundred and ninety-four thousand, three hundred and four) is:
 * $2^{22}$


 * The $11$th power of $4$ after $(1)$, $4$, $16$, $64$, $256$, $1024$, $4096$, $16 \, 384$, $65 \, 536$, $262 \, 144$, $1 \, 048 \, 576$:
 * $4 \, 194 \, 304 = 4^{11}$


 * The $22$nd power of $2$ after $(1)$, $2$, $4$, $8$, $16$, $\ldots$, $65 \, 536$, $131 \, 072$, $262 \, 144$, $524 \, 288$, $1 \, 048 \, 576$, $2 \, 097 \, 152$:
 * $4 \, 194 \, 304 = 2^{22}$


 * The $23$rd almost perfect number after $1$, $2$, $4$, $8$, $16$, $\ldots$, $65 \, 536$, $131 \, 072$, $262 \, 144$, $524 \, 288$, $1 \, 048 \, 576$, $2 \, 097 \, 152$:
 * $\map {\sigma_1} {4 \, 194 \, 304} = 8 \, 388 \, 607 = 2 \times 4 \, 194 \, 304 - 1$


 * The $2048$th square number:
 * $4 \, 194 \, 304 = 2048 \times 2048$