257407364 has 24 divisors (see below), whose sum is σ = 490526400. Its totient is φ = 117724320.

The previous prime is 257407361. The next prime is 257407369. The reversal of 257407364 is 463704752.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (257407361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56192 + ... + 60599.

It is an arithmetic number, because the mean of its divisors is an integer number (20438600).

Almost surely, 2^257407364 is an apocalyptic number.

It is an amenable number.

257407364 is a deficient number, since it is larger than the sum of its proper divisors (233119036).

257407364 is a wasteful number, since it uses less digits than its factorization.

257407364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116843 (or 116841 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 38.

The square root of 257407364 is about 16043.9198452249. The cubic root of 257407364 is about 636.1218633090.

The spelling of 257407364 in words is "two hundred fifty-seven million, four hundred seven thousand, three hundred sixty-four".