13990838 has 8 divisors (see below), whose sum is σ = 21330480. Its totient is φ = 6880680.

The previous prime is 13990807. The next prime is 13990841. The reversal of 13990838 is 83809931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 13990795 and 13990804.

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, 57218 + ... + 57461.

It is an arithmetic number, because the mean of its divisors is an integer number (2666310).

Almost surely, 2^13990838 is an apocalyptic number.

13990838 is a deficient number, since it is larger than the sum of its proper divisors (7339642).

13990838 is a wasteful number, since it uses less digits than its factorization.

13990838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114742.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 13990838 is about 3740.4328626511. The cubic root of 13990838 is about 240.9616394124.

The spelling of 13990838 in words is "thirteen million, nine hundred ninety thousand, eight hundred thirty-eight".