257070772 has 12 divisors (see below), whose sum is σ = 514141600. Its totient is φ = 110173176.

The previous prime is 257070769. The next prime is 257070791. The reversal of 257070772 is 277070752.

257070772 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4590522 + ... + 4590577.

Almost surely, 2^257070772 is an apocalyptic number.

It is an amenable number.

257070772 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

257070772 is a wasteful number, since it uses less digits than its factorization.

257070772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9181110 (or 9181108 counting only the distinct ones).

The product of its (nonzero) digits is 48020, while the sum is 37.

The square root of 257070772 is about 16033.4267079748. The cubic root of 257070772 is about 635.8444730000.

The spelling of 257070772 in words is "two hundred fifty-seven million, seventy thousand, seven hundred seventy-two".