13904544 has 24 divisors (see below), whose sum is σ = 36499680. Its totient is φ = 4634816.

The previous prime is 13904519. The next prime is 13904551. The reversal of 13904544 is 44540931.

It is a tau number, because it is divible by the number of its divisors (24).

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, 72324 + ... + 72515.

It is an arithmetic number, because the mean of its divisors is an integer number (1520820).

Almost surely, 2^13904544 is an apocalyptic number.

It is an amenable number.

13904544 is an abundant number, since it is smaller than the sum of its proper divisors (22595136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13904544 is a wasteful number, since it uses less digits than its factorization.

13904544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144852 (or 144844 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 13904544 is about 3728.8797245285. The cubic root of 13904544 is about 240.4652087818.

The spelling of 13904544 in words is "thirteen million, nine hundred four thousand, five hundred forty-four".