457972638 has 32 divisors (see below), whose sum is σ = 929664000. Its totient is φ = 150380256.

The previous prime is 457972631. The next prime is 457972651. The reversal of 457972638 is 836279754.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457972631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283120 + ... + 284732.

It is an arithmetic number, because the mean of its divisors is an integer number (29052000).

Almost surely, 2^457972638 is an apocalyptic number.

457972638 is an abundant number, since it is smaller than the sum of its proper divisors (471691362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

457972638 is a wasteful number, since it uses less digits than its factorization.

457972638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2296.

The product of its digits is 2540160, while the sum is 51.

The square root of 457972638 is about 21400.2952783367. The cubic root of 457972638 is about 770.8085272316.

The spelling of 457972638 in words is "four hundred fifty-seven million, nine hundred seventy-two thousand, six hundred thirty-eight".