13604045 has 32 divisors (see below), whose sum is σ = 20805120. Its totient is φ = 8305920.

The previous prime is 13604033. The next prime is 13604051. The reversal of 13604045 is 54040631.

It is a happy number.

It is not a de Polignac number, because 13604045 - 2⁸ = 13603789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13604045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12680 + ... + 13710.

It is an arithmetic number, because the mean of its divisors is an integer number (650160).

Almost surely, 2^13604045 is an apocalyptic number.

It is an amenable number.

13604045 is a deficient number, since it is larger than the sum of its proper divisors (7201075).

13604045 is a wasteful number, since it uses less digits than its factorization.

13604045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 13604045 is about 3688.3661694577. The cubic root of 13604045 is about 238.7203009392.

Adding to 13604045 its reverse (54040631), we get a palindrome (67644676).

The spelling of 13604045 in words is "thirteen million, six hundred four thousand, forty-five".