256996396 has 6 divisors (see below), whose sum is σ = 449743700. Its totient is φ = 128498196.

The previous prime is 256996387. The next prime is 256996403. The reversal of 256996396 is 693699652.

256996396 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32124546 + ... + 32124553.

Almost surely, 2^256996396 is an apocalyptic number.

It is an amenable number.

256996396 is a deficient number, since it is larger than the sum of its proper divisors (192747304).

256996396 is a wasteful number, since it uses less digits than its factorization.

256996396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64249103 (or 64249101 counting only the distinct ones).

The product of its digits is 4723920, while the sum is 55.

The square root of 256996396 is about 16031.1071358157. The cubic root of 256996396 is about 635.7831460099.

The spelling of 256996396 in words is "two hundred fifty-six million, nine hundred ninety-six thousand, three hundred ninety-six".