13990828 has 12 divisors (see below), whose sum is σ = 24677632. Its totient is φ = 6940080.

The previous prime is 13990807. The next prime is 13990841. The reversal of 13990828 is 82809931.

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, 13263 + ... + 14278.

Almost surely, 2^13990828 is an apocalyptic number.

It is an amenable number.

13990828 is a deficient number, since it is larger than the sum of its proper divisors (10686804).

13990828 is a wasteful number, since it uses less digits than its factorization.

13990828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27672 (or 27670 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 13990828 is about 3740.4315259071. The cubic root of 13990828 is about 240.9615820030.

The spelling of 13990828 in words is "thirteen million, nine hundred ninety thousand, eight hundred twenty-eight".