57366720 has 84 divisors (see below), whose sum is σ = 197327520. Its totient is φ = 15297024.

The previous prime is 57366713. The next prime is 57366739. The reversal of 57366720 is 2766375.

It is a happy number.

57366720 is a `hidden beast` number, since 573 + 6 + 67 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7080 + ... + 12839.

Almost surely, 2^57366720 is an apocalyptic number.

It is an amenable number.

57366720 is an abundant number, since it is smaller than the sum of its proper divisors (139960800).

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

57366720 is a wasteful number, since it uses less digits than its factorization.

57366720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19942 (or 19929 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 36.

The square root of 57366720 is about 7574.0821226073. The cubic root of 57366720 is about 385.6736841449.

The spelling of 57366720 in words is "fifty-seven million, three hundred sixty-six thousand, seven hundred twenty".