16604404 has 12 divisors (see below), whose sum is σ = 30587200. Its totient is φ = 7865208.

The previous prime is 16604389. The next prime is 16604417. The reversal of 16604404 is 40440661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109164 + ... + 109315.

Almost surely, 2^16604404 is an apocalyptic number.

It is an amenable number.

16604404 is a deficient number, since it is larger than the sum of its proper divisors (13982796).

16604404 is a wasteful number, since it uses less digits than its factorization.

16604404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218502 (or 218500 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 16604404 is about 4074.8501812950. The cubic root of 16604404 is about 255.1179974213.

The spelling of 16604404 in words is "sixteen million, six hundred four thousand, four hundred four".