256344604 has 6 divisors (see below), whose sum is σ = 448603064. Its totient is φ = 128172300.

The previous prime is 256344559. The next prime is 256344607. The reversal of 256344604 is 406443652.

It is a self number, because there is not a number n which added to its sum of digits gives 256344604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256344607) 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 as a sum of consecutive naturals, namely, 32043072 + ... + 32043079.

Almost surely, 2^256344604 is an apocalyptic number.

It is an amenable number.

256344604 is a deficient number, since it is larger than the sum of its proper divisors (192258460).

256344604 is a wasteful number, since it uses less digits than its factorization.

256344604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64086155 (or 64086153 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

The square root of 256344604 is about 16010.7652534162. The cubic root of 256344604 is about 635.2452017684.

The spelling of 256344604 in words is "two hundred fifty-six million, three hundred forty-four thousand, six hundred four".