3942791056 has 40 divisors (see below), whose sum is σ = 7694852984. Its totient is φ = 1957063680.

The previous prime is 3942790991. The next prime is 3942791087. The reversal of 3942791056 is 6501972493.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 31539456 + 3911251600 = 5616^2 + 62540^2 .

It is a super-2 number, since 2×3942791056² = 31091202622547190272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3942790997 and 3942791015.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2712826 + ... + 2714278.

Almost surely, 2^3942791056 is an apocalyptic number.

It is an amenable number.

3942791056 is a deficient number, since it is larger than the sum of its proper divisors (3752061928).

3942791056 is a wasteful number, since it uses less digits than its factorization.

3942791056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2579 (or 2573 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 3942791056 is about 62791.6479796477. The cubic root of 3942791056 is about 1579.7968889152.

The spelling of 3942791056 in words is "three billion, nine hundred forty-two million, seven hundred ninety-one thousand, fifty-six".