18822885 has 16 divisors (see below), whose sum is σ = 31155840. Its totient is φ = 9692480.

The previous prime is 18822871. The next prime is 18822907. The reversal of 18822885 is 58822881.

It is not a de Polignac number, because 18822885 - 2⁶ = 18822821 is a prime.

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, 21201 + ... + 22070.

It is an arithmetic number, because the mean of its divisors is an integer number (1947240).

Almost surely, 2^18822885 is an apocalyptic number.

18822885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18822885 is a deficient number, since it is larger than the sum of its proper divisors (12332955).

18822885 is a wasteful number, since it uses less digits than its factorization.

18822885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43308.

The product of its digits is 81920, while the sum is 42.

The square root of 18822885 is about 4338.5348909511. The cubic root of 18822885 is about 266.0084277579.

The spelling of 18822885 in words is "eighteen million, eight hundred twenty-two thousand, eight hundred eighty-five".