444,171,597,444

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Number

$444 \, 171 \, 597 \, 444$ is:

$2^2 \times 3^2 \times 277^2 \times 401^2$

The $666 \, 462$nd square number:

$444 \, 171 \, 597 \, 444 = 666 \, 462 \times 666 \, 462$

The $3$rd after $484$, $44 \, 944$ of the only $3$ square numbers which start and end with $n$ $4$s.

Also see

• Previous: Sequence of Squares Beginning and Ending with n 4s
• Previous  ... Next: Square Number

Sources

• 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $444,171,597,444$