57433280 has 28 divisors (see below), whose sum is σ = 136763760. Its totient is φ = 22973184.

The previous prime is 57433279. The next prime is 57433283. The reversal of 57433280 is 8233475.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (57433283) 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, 89420 + ... + 90059.

It is an arithmetic number, because the mean of its divisors is an integer number (4884420).

Almost surely, 2^57433280 is an apocalyptic number.

It is an amenable number.

57433280 is an abundant number, since it is smaller than the sum of its proper divisors (79330480).

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

57433280 is a wasteful number, since it uses less digits than its factorization.

57433280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179496 (or 179486 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 57433280 is about 7578.4747805875. The cubic root of 57433280 is about 385.8227863812.

The spelling of 57433280 in words is "fifty-seven million, four hundred thirty-three thousand, two hundred eighty".