13299944 has 32 divisors (see below), whose sum is σ = 28617600. Its totient is φ = 5676480.

The previous prime is 13299931. The next prime is 13299947. The reversal of 13299944 is 44999231.

13299944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13299947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24314 + ... + 24854.

It is an arithmetic number, because the mean of its divisors is an integer number (894300).

Almost surely, 2^13299944 is an apocalyptic number.

13299944 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13299944 is an abundant number, since it is smaller than the sum of its proper divisors (15317656).

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

13299944 is a wasteful number, since it uses less digits than its factorization.

13299944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993 (or 989 counting only the distinct ones).

The product of its digits is 69984, while the sum is 41.

The square root of 13299944 is about 3646.9088280351. The cubic root of 13299944 is about 236.9281176841.

Subtracting from 13299944 its sum of digits (41), we obtain a triangular number (13299903 = T₅₁₅₇).

The spelling of 13299944 in words is "thirteen million, two hundred ninety-nine thousand, nine hundred forty-four".