13990508 has 12 divisors (see below), whose sum is σ = 27981072. Its totient is φ = 5995920.

The previous prime is 13990481. The next prime is 13990511. The reversal of 13990508 is 80509931.

13990508 is an admirable 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, 249803 + ... + 249858.

It is an arithmetic number, because the mean of its divisors is an integer number (2331756).

Almost surely, 2^13990508 is an apocalyptic number.

It is an amenable number.

13990508 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13990508 is a wasteful number, since it uses less digits than its factorization.

13990508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499672 (or 499670 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 13990508 is about 3740.3887498494. The cubic root of 13990508 is about 240.9597448877.

The spelling of 13990508 in words is "thirteen million, nine hundred ninety thousand, five hundred eight".