57239304 has 16 divisors (see below), whose sum is σ = 143098320. Its totient is φ = 19079760.

The previous prime is 57239293. The next prime is 57239309. The reversal of 57239304 is 40393275.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (57239309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1192462 + ... + 1192509.

It is an arithmetic number, because the mean of its divisors is an integer number (8943645).

Almost surely, 2^57239304 is an apocalyptic number.

It is an amenable number.

57239304 is an abundant number, since it is smaller than the sum of its proper divisors (85859016).

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

57239304 is a wasteful number, since it uses less digits than its factorization.

57239304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2384980 (or 2384976 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 57239304 is about 7565.6661306193. Note that the first 3 decimals coincide. The cubic root of 57239304 is about 385.3879352815.

The spelling of 57239304 in words is "fifty-seven million, two hundred thirty-nine thousand, three hundred four".