57396216 has 32 divisors (see below), whose sum is σ = 151932240. Its totient is φ = 18006528.

The previous prime is 57396173. The next prime is 57396223. The reversal of 57396216 is 61269375.

It is a super-2 number, since 2×57396216² = 6588651222237312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69931 + ... + 70746.

Almost surely, 2^57396216 is an apocalyptic number.

It is an amenable number.

57396216 is an abundant number, since it is smaller than the sum of its proper divisors (94536024).

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

57396216 is a wasteful number, since it uses less digits than its factorization.

57396216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140703 (or 140699 counting only the distinct ones).

The product of its digits is 68040, while the sum is 39.

The square root of 57396216 is about 7576.0290390151. The cubic root of 57396216 is about 385.7397728798.

The spelling of 57396216 in words is "fifty-seven million, three hundred ninety-six thousand, two hundred sixteen".