13339644 has 12 divisors (see below), whose sum is σ = 31125864. Its totient is φ = 4446544.

The previous prime is 13339643. The next prime is 13339649. The reversal of 13339644 is 44693331.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×13339644² = 355892204093472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13339643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555807 + ... + 555830.

It is an arithmetic number, because the mean of its divisors is an integer number (2593822).

Almost surely, 2^13339644 is an apocalyptic number.

It is an amenable number.

13339644 is an abundant number, since it is smaller than the sum of its proper divisors (17786220).

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

13339644 is a wasteful number, since it uses less digits than its factorization.

13339644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111644 (or 1111642 counting only the distinct ones).

The product of its digits is 23328, while the sum is 33.

The square root of 13339644 is about 3652.3477380994. The cubic root of 13339644 is about 237.1636250121.

The spelling of 13339644 in words is "thirteen million, three hundred thirty-nine thousand, six hundred forty-four".