13881626 has 16 divisors (see below), whose sum is σ = 22865760. Its totient is φ = 6268080.

The previous prime is 13881617. The next prime is 13881641. The reversal of 13881626 is 62618831.

13881626 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1445 + ... + 5463.

It is an arithmetic number, because the mean of its divisors is an integer number (1429110).

Almost surely, 2^13881626 is an apocalyptic number.

13881626 is a deficient number, since it is larger than the sum of its proper divisors (8984134).

13881626 is a wasteful number, since it uses less digits than its factorization.

13881626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4189.

The product of its digits is 13824, while the sum is 35.

The square root of 13881626 is about 3725.8054162825. The cubic root of 13881626 is about 240.3330214854. Note that the first 3 decimals are identical.

The spelling of 13881626 in words is "thirteen million, eight hundred eighty-one thousand, six hundred twenty-six".