57430272 has 36 divisors (see below), whose sum is σ = 152850320. Its totient is φ = 19143168.

The previous prime is 57430231. The next prime is 57430277. The reversal of 57430272 is 27203475.

It is a super-2 number, since 2×57430272² = 6596472283987968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57430277) 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, 36622 + ... + 38157.

Almost surely, 2^57430272 is an apocalyptic number.

It is an amenable number.

57430272 is an abundant number, since it is smaller than the sum of its proper divisors (95420048).

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

57430272 is an equidigital number, since it uses as much as digits as its factorization.

57430272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74798 (or 74784 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 57430272 is about 7578.2763211696. The cubic root of 57430272 is about 385.8160505932.

The spelling of 57430272 in words is "fifty-seven million, four hundred thirty thousand, two hundred seventy-two".