3920883728 has 20 divisors (see below), whose sum is σ = 7700779068. Its totient is φ = 1933585920.

The previous prime is 3920883709. The next prime is 3920883737. The reversal of 3920883728 is 8273880293.

It can be written as a sum of positive squares in 2 ways, for example, as 3103381264 + 817502464 = 55708^2 + 28592^2 .

It is a super-3 number, since 3×3920883728³ (a number of 30 digits) contains 333 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, 1677293 + ... + 1679628.

Almost surely, 2^3920883728 is an apocalyptic number.

It is an amenable number.

3920883728 is a deficient number, since it is larger than the sum of its proper divisors (3779895340).

3920883728 is a wasteful number, since it uses less digits than its factorization.

3920883728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3357002 (or 3356996 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 50.

The square root of 3920883728 is about 62616.9603861446. The cubic root of 3920883728 is about 1576.8655114309.

The spelling of 3920883728 in words is "three billion, nine hundred twenty million, eight hundred eighty-three thousand, seven hundred twenty-eight".