256704484 has 9 divisors (see below), whose sum is σ = 449288931. Its totient is φ = 128336220.

The previous prime is 256704467. The next prime is 256704509. The reversal of 256704484 is 484407652.

It is a happy number.

The square root of 256704484 is 16022.

It is a perfect power (a square), and thus also a powerful number.

256704484 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a Duffinian number.

256704484 is strictly pandigital in base 9.

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 in 2 ways as a sum of consecutive naturals, for example, 28039 + ... + 36049.

Almost surely, 2^256704484 is an apocalyptic number.

256704484 is the 16022-nd square number.

It is an amenable number.

256704484 is a deficient number, since it is larger than the sum of its proper divisors (192584447).

256704484 is an frugal number, since it uses more digits than its factorization.

256704484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16026 (or 8013 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 40.

The cubic root of 256704484 is about 635.5423345353.

The spelling of 256704484 in words is "two hundred fifty-six million, seven hundred four thousand, four hundred eighty-four".