13604408438 has 16 divisors (see below), whose sum is σ = 20620501440. Its totient is φ = 6731227656.

The previous prime is 13604408371. The next prime is 13604408539. The reversal of 13604408438 is 83480440631.

It is a junction number, because it is equal to n+sod(n) for n = 13604408395 and 13604408404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5645 + ... + 165047.

It is an arithmetic number, because the mean of its divisors is an integer number (1288781340).

Almost surely, 2^13604408438 is an apocalyptic number.

13604408438 is a deficient number, since it is larger than the sum of its proper divisors (7016093002).

13604408438 is a wasteful number, since it uses less digits than its factorization.

13604408438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159851.

The product of its (nonzero) digits is 221184, while the sum is 41.

The spelling of 13604408438 in words is "thirteen billion, six hundred four million, four hundred eight thousand, four hundred thirty-eight".