13944624 has 80 divisors (see below), whose sum is σ = 39854592. Its totient is φ = 4178944.

The previous prime is 13944617. The next prime is 13944629. The reversal of 13944624 is 42644931.

It is not an unprimeable number, because it can be changed into a prime (13944629) 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 15 ways as a sum of consecutive naturals, for example, 18397 + ... + 19139.

Almost surely, 2^13944624 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13944624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19927296).

13944624 is an abundant number, since it is smaller than the sum of its proper divisors (25909968).

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

13944624 is a wasteful number, since it uses less digits than its factorization.

13944624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794 (or 788 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

The square root of 13944624 is about 3734.2501255272. The cubic root of 13944624 is about 240.6960350011.

The spelling of 13944624 in words is "thirteen million, nine hundred forty-four thousand, six hundred twenty-four".