13907944 has 8 divisors (see below), whose sum is σ = 26077410. Its totient is φ = 6953968.

The previous prime is 13907903. The next prime is 13907951. The reversal of 13907944 is 44970931.

It can be written as a sum of positive squares in only one way, i.e., 7344100 + 6563844 = 2710^2 + 2562^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 869239 + ... + 869254.

Almost surely, 2^13907944 is an apocalyptic number.

It is an amenable number.

13907944 is a deficient number, since it is larger than the sum of its proper divisors (12169466).

13907944 is a wasteful number, since it uses less digits than its factorization.

13907944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738499 (or 1738495 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 13907944 is about 3729.3355976635. The cubic root of 13907944 is about 240.4848070531.

The spelling of 13907944 in words is "thirteen million, nine hundred seven thousand, nine hundred forty-four".