256726604 has 6 divisors (see below), whose sum is σ = 449271564. Its totient is φ = 128363300.

The previous prime is 256726577. The next prime is 256726607. The reversal of 256726604 is 406627652.

It is not an unprimeable number, because it can be changed into a prime (256726607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32090822 + ... + 32090829.

It is an arithmetic number, because the mean of its divisors is an integer number (74878594).

Almost surely, 2^256726604 is an apocalyptic number.

It is an amenable number.

256726604 is a deficient number, since it is larger than the sum of its proper divisors (192544960).

256726604 is a wasteful number, since it uses less digits than its factorization.

256726604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64181655 (or 64181653 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 256726604 is about 16022.6902859663. The cubic root of 256726604 is about 635.5605887193.

The spelling of 256726604 in words is "two hundred fifty-six million, seven hundred twenty-six thousand, six hundred four".