13722544 has 20 divisors (see below), whose sum is σ = 29004840. Its totient is φ = 6237440.

The previous prime is 13722529. The next prime is 13722571. The reversal of 13722544 is 44522731.

It is an unprimeable number.

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, 38809 + ... + 39160.

It is an arithmetic number, because the mean of its divisors is an integer number (1450242).

Almost surely, 2^13722544 is an apocalyptic number.

It is an amenable number.

13722544 is an abundant number, since it is smaller than the sum of its proper divisors (15282296).

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

13722544 is a wasteful number, since it uses less digits than its factorization.

13722544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77988 (or 77982 counting only the distinct ones).

The product of its digits is 6720, while the sum is 28.

The square root of 13722544 is about 3704.3952272942. The cubic root of 13722544 is about 239.4114281469.

It can be divided in two parts, 1372 and 2544, that added together give a triangular number (3916 = T₈₈).

The spelling of 13722544 in words is "thirteen million, seven hundred twenty-two thousand, five hundred forty-four".