57740428 has 12 divisors (see below), whose sum is σ = 101139192. Its totient is φ = 28843520.

The previous prime is 57740407. The next prime is 57740489. The reversal of 57740428 is 82404775.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1333 + ... + 10828.

It is an arithmetic number, because the mean of its divisors is an integer number (8428266).

Almost surely, 2^57740428 is an apocalyptic number.

It is an amenable number.

57740428 is a deficient number, since it is larger than the sum of its proper divisors (43398764).

57740428 is a wasteful number, since it uses less digits than its factorization.

57740428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13352 (or 13350 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 37.

The square root of 57740428 is about 7598.7122593239. The cubic root of 57740428 is about 386.5093457639.

The spelling of 57740428 in words is "fifty-seven million, seven hundred forty thousand, four hundred twenty-eight".