13808938 has 32 divisors (see below), whose sum is σ = 24820992. Its totient is φ = 5678400.

The previous prime is 13808917. The next prime is 13808941. The reversal of 13808938 is 83980831.

13808938 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 13808938.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14703 + ... + 15613.

It is an arithmetic number, because the mean of its divisors is an integer number (775656).

Almost surely, 2^13808938 is an apocalyptic number.

13808938 is a deficient number, since it is larger than the sum of its proper divisors (11012054).

13808938 is a wasteful number, since it uses less digits than its factorization.

13808938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 13808938 is about 3716.0379438321. The cubic root of 13808938 is about 239.9128039722.

The spelling of 13808938 in words is "thirteen million, eight hundred eight thousand, nine hundred thirty-eight".