13890208 has 24 divisors (see below), whose sum is σ = 27524448. Its totient is φ = 6899904.

The previous prime is 13890169. The next prime is 13890209. The reversal of 13890208 is 80209831.

13890208 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 13890208.

It is not an unprimeable number, because it can be changed into a prime (13890209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3885 + ... + 6547.

It is an arithmetic number, because the mean of its divisors is an integer number (1146852).

Almost surely, 2^13890208 is an apocalyptic number.

It is an amenable number.

13890208 is a deficient number, since it is larger than the sum of its proper divisors (13634240).

13890208 is a wasteful number, since it uses less digits than its factorization.

13890208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2836 (or 2828 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 13890208 is about 3726.9569356246. The cubic root of 13890208 is about 240.3825380934.

The spelling of 13890208 in words is "thirteen million, eight hundred ninety thousand, two hundred eight".