3988290812 has 12 divisors (see below), whose sum is σ = 7614009816. Its totient is φ = 1812859440.

The previous prime is 3988290809. The next prime is 3988290841. The reversal of 3988290812 is 2180928893.

It is a congruent number.

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, 45321443 + ... + 45321530.

It is an arithmetic number, because the mean of its divisors is an integer number (634500818).

Almost surely, 2^3988290812 is an apocalyptic number.

It is an amenable number.

3988290812 is a deficient number, since it is larger than the sum of its proper divisors (3625719004).

3988290812 is a wasteful number, since it uses less digits than its factorization.

3988290812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90642988 (or 90642986 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 50.

The square root of 3988290812 is about 63152.9161005254. The cubic root of 3988290812 is about 1585.8506066656.

The spelling of 3988290812 in words is "three billion, nine hundred eighty-eight million, two hundred ninety thousand, eight hundred twelve".