257453672 has 32 divisors (see below), whose sum is σ = 560737920. Its totient is φ = 108527040.

The previous prime is 257453657. The next prime is 257453689. The reversal of 257453672 is 276354752.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34268 + ... + 41099.

It is an arithmetic number, because the mean of its divisors is an integer number (17523060).

Almost surely, 2^257453672 is an apocalyptic number.

It is an amenable number.

257453672 is an abundant number, since it is smaller than the sum of its proper divisors (303284248).

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

257453672 is a wasteful number, since it uses less digits than its factorization.

257453672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75441 (or 75437 counting only the distinct ones).

The product of its digits is 352800, while the sum is 41.

The square root of 257453672 is about 16045.3629438539. The cubic root of 257453672 is about 636.1600074715.

The spelling of 257453672 in words is "two hundred fifty-seven million, four hundred fifty-three thousand, six hundred seventy-two".