18804404 has 12 divisors (see below), whose sum is σ = 33710628. Its totient is φ = 9172800.

The previous prime is 18804389. The next prime is 18804413. The reversal of 18804404 is 40440881.

It can be written as a sum of positive squares in 2 ways, for example, as 3610000 + 15194404 = 1900^2 + 3898^2 .

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, 57167 + ... + 57494.

It is an arithmetic number, because the mean of its divisors is an integer number (2809219).

Almost surely, 2^18804404 is an apocalyptic number.

It is an amenable number.

18804404 is a deficient number, since it is larger than the sum of its proper divisors (14906224).

18804404 is a wasteful number, since it uses less digits than its factorization.

18804404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114706 (or 114704 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 29.

The square root of 18804404 is about 4336.4045014274. The cubic root of 18804404 is about 265.9213403009.

The spelling of 18804404 in words is "eighteen million, eight hundred four thousand, four hundred four".