457017438 has 64 divisors (see below), whose sum is σ = 983347200. Its totient is φ = 141281280.

The previous prime is 457017433. The next prime is 457017487. The reversal of 457017438 is 834710754.

It is a junction number, because it is equal to n+sod(n) for n = 457017396 and 457017405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457017433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1040823 + ... + 1041261.

It is an arithmetic number, because the mean of its divisors is an integer number (15364800).

Almost surely, 2^457017438 is an apocalyptic number.

457017438 is an abundant number, since it is smaller than the sum of its proper divisors (526329762).

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

457017438 is a wasteful number, since it uses less digits than its factorization.

457017438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 457017438 is about 21377.9661801585. The cubic root of 457017438 is about 770.2722588134.

The spelling of 457017438 in words is "four hundred fifty-seven million, seventeen thousand, four hundred thirty-eight".