13604012 has 24 divisors (see below), whose sum is σ = 25893504. Its totient is φ = 6227712.

The previous prime is 13604011. The next prime is 13604021. The reversal of 13604012 is 21040631.

It is a super-2 number, since 2×13604012² = 370138284992288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (13604011) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 188 + ... + 5219.

It is an arithmetic number, because the mean of its divisors is an integer number (1078896).

Almost surely, 2^13604012 is an apocalyptic number.

It is an amenable number.

13604012 is a deficient number, since it is larger than the sum of its proper divisors (12289492).

13604012 is a wasteful number, since it uses less digits than its factorization.

13604012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5465 (or 5463 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 13604012 is about 3688.3616959295. The cubic root of 13604012 is about 238.7201079139.

Adding to 13604012 its reverse (21040631), we get a palindrome (34644643).

The spelling of 13604012 in words is "thirteen million, six hundred four thousand, twelve".