57238784 has 18 divisors (see below), whose sum is σ = 114254490. Its totient is φ = 28619264.

The previous prime is 57238771. The next prime is 57238799. The reversal of 57238784 is 48783275.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 47997184 + 9241600 = 6928^2 + 3040^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111539 + ... + 112050.

Almost surely, 2^57238784 is an apocalyptic number.

It is an amenable number.

57238784 is a deficient number, since it is larger than the sum of its proper divisors (57015706).

57238784 is an equidigital number, since it uses as much as digits as its factorization.

57238784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223605 (or 223591 counting only the distinct ones).

The product of its digits is 376320, while the sum is 44.

The square root of 57238784 is about 7565.6317647636. The cubic root of 57238784 is about 385.3867682376.

The spelling of 57238784 in words is "fifty-seven million, two hundred thirty-eight thousand, seven hundred eighty-four".