257472704 has 28 divisors (see below), whose sum is σ = 519306048. Its totient is φ = 126624000.

The previous prime is 257472697. The next prime is 257472739. The reversal of 257472704 is 407274752.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29072 + ... + 36879.

Almost surely, 2^257472704 is an apocalyptic number.

It is an amenable number.

257472704 is an abundant number, since it is smaller than the sum of its proper divisors (261833344).

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

257472704 is an equidigital number, since it uses as much as digits as its factorization.

257472704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66024 (or 66014 counting only the distinct ones).

The product of its (nonzero) digits is 109760, while the sum is 38.

The square root of 257472704 is about 16045.9560014354. The cubic root of 257472704 is about 636.1756829117.

The spelling of 257472704 in words is "two hundred fifty-seven million, four hundred seventy-two thousand, seven hundred four".