3964394256 has 20 divisors (see below), whose sum is σ = 10241351952. Its totient is φ = 1321464736.

The previous prime is 3964394243. The next prime is 3964394293. The reversal of 3964394256 is 6524934693.

It is a happy number.

3964394256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3964394199 and 3964394208.

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, 41295726 + ... + 41295821.

Almost surely, 2^3964394256 is an apocalyptic number.

It is an amenable number.

3964394256 is an abundant number, since it is smaller than the sum of its proper divisors (6276957696).

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

3964394256 is a wasteful number, since it uses less digits than its factorization.

3964394256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82591558 (or 82591552 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 51.

The square root of 3964394256 is about 62963.4358655879. The cubic root of 3964394256 is about 1582.6769574184.

The spelling of 3964394256 in words is "three billion, nine hundred sixty-four million, three hundred ninety-four thousand, two hundred fifty-six".