257367272 has 8 divisors (see below), whose sum is σ = 482563650. Its totient is φ = 128683632.

The previous prime is 257367251. The next prime is 257367277. The reversal of 257367272 is 272763752.

It can be written as a sum of positive squares in only one way, i.e., 224580196 + 32787076 = 14986^2 + 5726^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (257367277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16085447 + ... + 16085462.

Almost surely, 2^257367272 is an apocalyptic number.

It is an amenable number.

257367272 is a deficient number, since it is larger than the sum of its proper divisors (225196378).

257367272 is a wasteful number, since it uses less digits than its factorization.

257367272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32170915 (or 32170911 counting only the distinct ones).

The product of its digits is 246960, while the sum is 41.

The square root of 257367272 is about 16042.6703512850. The cubic root of 257367272 is about 636.0888356060.

The spelling of 257367272 in words is "two hundred fifty-seven million, three hundred sixty-seven thousand, two hundred seventy-two".