13980814 has 16 divisors (see below), whose sum is σ = 21951360. Its totient is φ = 6670080.

The previous prime is 13980793. The next prime is 13980821. The reversal of 13980814 is 41808931.

It is a happy number.

13980814 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13980814.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2982 + ... + 6070.

It is an arithmetic number, because the mean of its divisors is an integer number (1371960).

Almost surely, 2^13980814 is an apocalyptic number.

13980814 is a deficient number, since it is larger than the sum of its proper divisors (7970546).

13980814 is a wasteful number, since it uses less digits than its factorization.

13980814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3195.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 13980814 is about 3739.0926706890. The cubic root of 13980814 is about 240.9040784916.

The spelling of 13980814 in words is "thirteen million, nine hundred eighty thousand, eight hundred fourteen".