439630988 has 12 divisors (see below), whose sum is σ = 769540632. Its totient is φ = 219762240.

The previous prime is 439630979. The next prime is 439631021. The reversal of 439630988 is 889036934.

It is a super-2 number, since 2×439630988² = 386550811219712288, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9668 + ... + 31188.

It is an arithmetic number, because the mean of its divisors is an integer number (64128386).

Almost surely, 2^439630988 is an apocalyptic number.

It is an amenable number.

439630988 is a deficient number, since it is larger than the sum of its proper divisors (329909644).

439630988 is a wasteful number, since it uses less digits than its factorization.

439630988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26632 (or 26630 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 50.

The square root of 439630988 is about 20967.3791399879. The cubic root of 439630988 is about 760.3778061545.

The spelling of 439630988 in words is "four hundred thirty-nine million, six hundred thirty thousand, nine hundred eighty-eight".