257634004 has 12 divisors (see below), whose sum is σ = 451546228. Its totient is φ = 128620800.

The previous prime is 257634001. The next prime is 257634023. The reversal of 257634004 is 400436752.

It can be written as a sum of positive squares in 2 ways, for example, as 150552900 + 107081104 = 12270^2 + 10348^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257634001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46077 + ... + 51364.

Almost surely, 2^257634004 is an apocalyptic number.

It is an amenable number.

257634004 is a deficient number, since it is larger than the sum of its proper divisors (193912224).

257634004 is a wasteful number, since it uses less digits than its factorization.

257634004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98106 (or 98104 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 257634004 is about 16050.9814030171. The cubic root of 257634004 is about 636.3085043913.

The spelling of 257634004 in words is "two hundred fifty-seven million, six hundred thirty-four thousand, four".