57304320 has 72 divisors (see below), whose sum is σ = 183027936. Its totient is φ = 15280128.

The previous prime is 57304307. The next prime is 57304367. The reversal of 57304320 is 2340375.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3622 + ... + 11301.

Almost surely, 2^57304320 is an apocalyptic number.

It is an amenable number.

57304320 is an abundant number, since it is smaller than the sum of its proper divisors (125723616).

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

57304320 is a wasteful number, since it uses less digits than its factorization.

57304320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14947 (or 14933 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 57304320 is about 7569.9616907881. The cubic root of 57304320 is about 385.5337960180.

Adding to 57304320 its reverse (2340375), we get a palindrome (59644695).

The spelling of 57304320 in words is "fifty-seven million, three hundred four thousand, three hundred twenty".