257341928 has 32 divisors (see below), whose sum is σ = 519736800. Its totient is φ = 119060928.

The previous prime is 257341927. The next prime is 257341933. The reversal of 257341928 is 829143752.

It is not an unprimeable number, because it can be changed into a prime (257341921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13151 + ... + 26222.

It is an arithmetic number, because the mean of its divisors is an integer number (16241775).

Almost surely, 2^257341928 is an apocalyptic number.

It is an amenable number.

257341928 is an abundant number, since it is smaller than the sum of its proper divisors (262394872).

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

257341928 is a wasteful number, since it uses less digits than its factorization.

257341928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39441 (or 39437 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 257341928 is about 16041.8804384025. The cubic root of 257341928 is about 636.0679555040.

The spelling of 257341928 in words is "two hundred fifty-seven million, three hundred forty-one thousand, nine hundred twenty-eight".