257204874 has 16 divisors (see below), whose sum is σ = 515967840. Its totient is φ = 85475280.

The previous prime is 257204873. The next prime is 257204891. The reversal of 257204874 is 478402752.

It is not an unprimeable number, because it can be changed into a prime (257204873) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 62769 + ... + 66740.

It is an arithmetic number, because the mean of its divisors is an integer number (32247990).

Almost surely, 2^257204874 is an apocalyptic number.

257204874 is an abundant number, since it is smaller than the sum of its proper divisors (258762966).

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

257204874 is a wasteful number, since it uses less digits than its factorization.

257204874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129845.

The product of its (nonzero) digits is 125440, while the sum is 39.

The square root of 257204874 is about 16037.6081134314. The cubic root of 257204874 is about 635.9550173874.

The spelling of 257204874 in words is "two hundred fifty-seven million, two hundred four thousand, eight hundred seventy-four".