13520344 has 8 divisors (see below), whose sum is σ = 25350660. Its totient is φ = 6760168.

The previous prime is 13520333. The next prime is 13520363. The reversal of 13520344 is 44302531.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 845014 + ... + 845029.

Almost surely, 2^13520344 is an apocalyptic number.

It is an amenable number.

13520344 is a deficient number, since it is larger than the sum of its proper divisors (11830316).

13520344 is a wasteful number, since it uses less digits than its factorization.

13520344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1690049 (or 1690045 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 13520344 is about 3677.0020397057. The cubic root of 13520344 is about 238.2297054936.

Adding to 13520344 its reverse (44302531), we get a palindrome (57822875).

The spelling of 13520344 in words is "thirteen million, five hundred twenty thousand, three hundred forty-four".