3990639088 has 10 divisors (see below), whose sum is σ = 7731863264. Its totient is φ = 1995319536.

The previous prime is 3990639053. The next prime is 3990639131. The reversal of 3990639088 is 8809360993.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124707456 + ... + 124707487.

Almost surely, 2^3990639088 is an apocalyptic number.

It is an amenable number.

3990639088 is a deficient number, since it is larger than the sum of its proper divisors (3741224176).

3990639088 is a wasteful number, since it uses less digits than its factorization.

3990639088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249414951 (or 249414945 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 55.

The square root of 3990639088 is about 63171.5053485351. The cubic root of 3990639088 is about 1586.1617912843.

The spelling of 3990639088 in words is "three billion, nine hundred ninety million, six hundred thirty-nine thousand, eighty-eight".