13791944 has 16 divisors (see below), whose sum is σ = 26172720. Its totient is φ = 6812560.

The previous prime is 13791941. The next prime is 13791959. The reversal of 13791944 is 44919731.

It is a junction number, because it is equal to n+sod(n) for n = 13791898 and 13791907.

It is not an unprimeable number, because it can be changed into a prime (13791941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9722 + ... + 11049.

It is an arithmetic number, because the mean of its divisors is an integer number (1635795).

Almost surely, 2^13791944 is an apocalyptic number.

It is an amenable number.

13791944 is a deficient number, since it is larger than the sum of its proper divisors (12380776).

13791944 is a wasteful number, since it uses less digits than its factorization.

13791944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20860 (or 20856 counting only the distinct ones).

The product of its digits is 27216, while the sum is 38.

The square root of 13791944 is about 3713.7506647593. The cubic root of 13791944 is about 239.8143471654.

The spelling of 13791944 in words is "thirteen million, seven hundred ninety-one thousand, nine hundred forty-four".