13604072 has 16 divisors (see below), whose sum is σ = 25743300. Its totient is φ = 6739200.

The previous prime is 13604051. The next prime is 13604077. The reversal of 13604072 is 27040631.

It can be written as a sum of positive squares in 2 ways, for example, as 11792356 + 1811716 = 3434^2 + 1346^2 .

It is not an unprimeable number, because it can be changed into a prime (13604077) 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 3 ways as a sum of consecutive naturals, for example, 6929 + ... + 8672.

Almost surely, 2^13604072 is an apocalyptic number.

It is an amenable number.

13604072 is a deficient number, since it is larger than the sum of its proper divisors (12139228).

13604072 is a wasteful number, since it uses less digits than its factorization.

13604072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15716 (or 15712 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 13604072 is about 3688.3698296131. The cubic root of 13604072 is about 238.7204588688.

The spelling of 13604072 in words is "thirteen million, six hundred four thousand, seventy-two".