257022672 has 20 divisors (see below), whose sum is σ = 663975360. Its totient is φ = 85674208.

The previous prime is 257022593. The next prime is 257022673. The reversal of 257022672 is 276220752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257022673) 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, 2677272 + ... + 2677367.

It is an arithmetic number, because the mean of its divisors is an integer number (33198768).

Almost surely, 2^257022672 is an apocalyptic number.

It is an amenable number.

257022672 is an abundant number, since it is smaller than the sum of its proper divisors (406952688).

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

257022672 is a wasteful number, since it uses less digits than its factorization.

257022672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5354650 (or 5354644 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 257022672 is about 16031.9266465388. The cubic root of 257022672 is about 635.8048133288.

The spelling of 257022672 in words is "two hundred fifty-seven million, twenty-two thousand, six hundred seventy-two".