674660256 has 24 divisors (see below), whose sum is σ = 1770983424. Its totient is φ = 224886720.

The previous prime is 674660213. The next prime is 674660281. The reversal of 674660256 is 652066476.

674660256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×674660256² = 910332922051971072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3513760 + ... + 3513951.

It is an arithmetic number, because the mean of its divisors is an integer number (73790976).

Almost surely, 2^674660256 is an apocalyptic number.

It is an amenable number.

674660256 is an abundant number, since it is smaller than the sum of its proper divisors (1096323168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

674660256 is a wasteful number, since it uses less digits than its factorization.

674660256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7027724 (or 7027716 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The square root of 674660256 is about 25974.2229142664. Note that the first 3 decimals coincide. The cubic root of 674660256 is about 877.0581238047.

The spelling of 674660256 in words is "six hundred seventy-four million, six hundred sixty thousand, two hundred fifty-six".