13344645 has 16 divisors (see below), whose sum is σ = 21415680. Its totient is φ = 7095744.

The previous prime is 13344641. The next prime is 13344671. The reversal of 13344645 is 54644331.

It is not a de Polignac number, because 13344645 - 2² = 13344641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13344641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4692 + ... + 6978.

It is an arithmetic number, because the mean of its divisors is an integer number (1338480).

Almost surely, 2^13344645 is an apocalyptic number.

13344645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13344645 is a deficient number, since it is larger than the sum of its proper divisors (8071035).

13344645 is a wasteful number, since it uses less digits than its factorization.

13344645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2684.

The product of its digits is 17280, while the sum is 30.

The square root of 13344645 is about 3653.0323020745. The cubic root of 13344645 is about 237.1932586641.

Adding to 13344645 its reverse (54644331), we get a palindrome (67988976).

The spelling of 13344645 in words is "thirteen million, three hundred forty-four thousand, six hundred forty-five".