18804366 has 32 divisors (see below), whose sum is σ = 47758080. Its totient is φ = 5372568.

The previous prime is 18804349. The next prime is 18804377. The reversal of 18804366 is 66340881.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 18804366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24496 + ... + 25251.

It is an arithmetic number, because the mean of its divisors is an integer number (1492440).

Almost surely, 2^18804366 is an apocalyptic number.

18804366 is an abundant number, since it is smaller than the sum of its proper divisors (28953714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18804366 is a wasteful number, since it uses less digits than its factorization.

18804366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49765 (or 49759 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 18804366 is about 4336.4001199151. The cubic root of 18804366 is about 265.9211611758.

The spelling of 18804366 in words is "eighteen million, eight hundred four thousand, three hundred sixty-six".