18804955 has 16 divisors (see below), whose sum is σ = 24444000. Its totient is φ = 13805568.

The previous prime is 18804943. The next prime is 18804959. The reversal of 18804955 is 55940881.

It is a cyclic number.

It is not a de Polignac number, because 18804955 - 2⁷ = 18804827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18804959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11796 + ... + 13294.

It is an arithmetic number, because the mean of its divisors is an integer number (1527750).

Almost surely, 2^18804955 is an apocalyptic number.

18804955 is a deficient number, since it is larger than the sum of its proper divisors (5639045).

18804955 is a wasteful number, since it uses less digits than its factorization.

18804955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710.

The product of its (nonzero) digits is 57600, while the sum is 40.

The square root of 18804955 is about 4336.4680328581. The cubic root of 18804955 is about 265.9239375865.

The spelling of 18804955 in words is "eighteen million, eight hundred four thousand, nine hundred fifty-five".