13891844 has 12 divisors (see below), whose sum is σ = 25095168. Its totient is φ = 6721800.

The previous prime is 13891819. The next prime is 13891853. The reversal of 13891844 is 44819831.

13891844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13891798 and 13891807.

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, 55892 + ... + 56139.

It is an arithmetic number, because the mean of its divisors is an integer number (2091264).

Almost surely, 2^13891844 is an apocalyptic number.

It is an amenable number.

13891844 is a deficient number, since it is larger than the sum of its proper divisors (11203324).

13891844 is a wasteful number, since it uses less digits than its factorization.

13891844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112066 (or 112064 counting only the distinct ones).

The product of its digits is 27648, while the sum is 38.

The square root of 13891844 is about 3727.1764111724. The cubic root of 13891844 is about 240.3919752065.

The spelling of 13891844 in words is "thirteen million, eight hundred ninety-one thousand, eight hundred forty-four".