57302428 has 12 divisors (see below), whose sum is σ = 100834552. Its totient is φ = 28492560.

The previous prime is 57302411. The next prime is 57302429. The reversal of 57302428 is 82420375.

It is a self number, because there is not a number n which added to its sum of digits gives 57302428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57302429) 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, 38850 + ... + 40297.

Almost surely, 2^57302428 is an apocalyptic number.

It is an amenable number.

57302428 is a deficient number, since it is larger than the sum of its proper divisors (43532124).

57302428 is a wasteful number, since it uses less digits than its factorization.

57302428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79332 (or 79330 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 57302428 is about 7569.8367221493. The cubic root of 57302428 is about 385.5295529524.

The spelling of 57302428 in words is "fifty-seven million, three hundred two thousand, four hundred twenty-eight".