256630204 has 6 divisors (see below), whose sum is σ = 449102864. Its totient is φ = 128315100.

The previous prime is 256630151. The next prime is 256630219. The reversal of 256630204 is 402036652.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32078772 + ... + 32078779.

Almost surely, 2^256630204 is an apocalyptic number.

It is an amenable number.

256630204 is a deficient number, since it is larger than the sum of its proper divisors (192472660).

256630204 is a wasteful number, since it uses less digits than its factorization.

256630204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64157555 (or 64157553 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 256630204 is about 16019.6817696233. The cubic root of 256630204 is about 635.4810284530.

Adding to 256630204 its reverse (402036652), we get a palindrome (658666856).

The spelling of 256630204 in words is "two hundred fifty-six million, six hundred thirty thousand, two hundred four".