631045456 has 20 divisors (see below), whose sum is σ = 1224902752. Its totient is φ = 314941536.

The previous prime is 631045439. The next prime is 631045477. The reversal of 631045456 is 654540136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27300 + ... + 44803.

Almost surely, 2^631045456 is an apocalyptic number.

It is an amenable number.

631045456 is a deficient number, since it is larger than the sum of its proper divisors (593857296).

631045456 is a wasteful number, since it uses less digits than its factorization.

631045456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72658 (or 72652 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 631045456 is about 25120.6181452607. The cubic root of 631045456 is about 857.7358217184.

The spelling of 631045456 in words is "six hundred thirty-one million, forty-five thousand, four hundred fifty-six".