57730540 has 48 divisors (see below), whose sum is σ = 139007232. Its totient is φ = 19728576.

The previous prime is 57730537. The next prime is 57730559. The reversal of 57730540 is 4503775.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64939 + ... + 65821.

It is an arithmetic number, because the mean of its divisors is an integer number (2895984).

Almost surely, 2^57730540 is an apocalyptic number.

It is an amenable number.

57730540 is an abundant number, since it is smaller than the sum of its proper divisors (81276692).

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

57730540 is a wasteful number, since it uses less digits than its factorization.

57730540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366 (or 1364 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 31.

The square root of 57730540 is about 7598.0615949070. The cubic root of 57730540 is about 386.4872813703.

The spelling of 57730540 in words is "fifty-seven million, seven hundred thirty thousand, five hundred forty".