13604344 has 16 divisors (see below), whose sum is σ = 27470520. Its totient is φ = 6278880.

The previous prime is 13604341. The next prime is 13604359. The reversal of 13604344 is 44340631.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13604341) 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, 65302 + ... + 65509.

Almost surely, 2^13604344 is an apocalyptic number.

It is an amenable number.

13604344 is an abundant number, since it is smaller than the sum of its proper divisors (13866176).

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

13604344 is a wasteful number, since it uses less digits than its factorization.

13604344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130830 (or 130826 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 13604344 is about 3688.4067020870. The cubic root of 13604344 is about 238.7220498516.

Adding to 13604344 its reverse (44340631), we get a palindrome (57944975).

The spelling of 13604344 in words is "thirteen million, six hundred four thousand, three hundred forty-four".