18853794 has 24 divisors (see below), whose sum is σ = 41955420. Its totient is φ = 6114528.

The previous prime is 18853781. The next prime is 18853811. The reversal of 18853794 is 49735881.

It can be written as a sum of positive squares in 2 ways, for example, as 18173169 + 680625 = 4263^2 + 825^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13489 + ... + 14820.

Almost surely, 2^18853794 is an apocalyptic number.

18853794 is an abundant number, since it is smaller than the sum of its proper divisors (23101626).

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

18853794 is a wasteful number, since it uses less digits than its factorization.

18853794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28354 (or 28351 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 18853794 is about 4342.0955770227. The cubic root of 18853794 is about 266.1539519983.

The spelling of 18853794 in words is "eighteen million, eight hundred fifty-three thousand, seven hundred ninety-four".