57444868 has 48 divisors (see below), whose sum is σ = 112986160. Its totient is φ = 25380864.

The previous prime is 57444841. The next prime is 57444883. The reversal of 57444868 is 86844475.

It can be written as a sum of positive squares in 8 ways, for example, as 5345344 + 52099524 = 2312^2 + 7218^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140248 + ... + 140656.

Almost surely, 2^57444868 is an apocalyptic number.

It is an amenable number.

57444868 is a deficient number, since it is larger than the sum of its proper divisors (55541292).

57444868 is a wasteful number, since it uses less digits than its factorization.

57444868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536 (or 534 counting only the distinct ones).

The product of its digits is 860160, while the sum is 46.

The square root of 57444868 is about 7579.2392758113. The cubic root of 57444868 is about 385.8487330901.

The spelling of 57444868 in words is "fifty-seven million, four hundred forty-four thousand, eight hundred sixty-eight".