18852985 has 16 divisors (see below), whose sum is σ = 23950080. Its totient is φ = 14217280.

The previous prime is 18852971. The next prime is 18853013. The reversal of 18852985 is 58925881.

It is not a de Polignac number, because 18852985 - 2²¹ = 16755833 is a prime.

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, 7011 + ... + 9319.

It is an arithmetic number, because the mean of its divisors is an integer number (1496880).

Almost surely, 2^18852985 is an apocalyptic number.

It is an amenable number.

18852985 is a deficient number, since it is larger than the sum of its proper divisors (5097095).

18852985 is a wasteful number, since it uses less digits than its factorization.

18852985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2408.

The product of its digits is 230400, while the sum is 46.

The square root of 18852985 is about 4342.0024182398. The cubic root of 18852985 is about 266.1501451319.

The spelling of 18852985 in words is "eighteen million, eight hundred fifty-two thousand, nine hundred eighty-five".