18814956 has 48 divisors (see below), whose sum is σ = 45158400. Its totient is φ = 6095232.

The previous prime is 18814909. The next prime is 18814967. The reversal of 18814956 is 65941881.

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, 84261 + ... + 84483.

It is an arithmetic number, because the mean of its divisors is an integer number (940800).

Almost surely, 2^18814956 is an apocalyptic number.

It is an amenable number.

18814956 is an abundant number, since it is smaller than the sum of its proper divisors (26343444).

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

18814956 is a wasteful number, since it uses less digits than its factorization.

18814956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398 (or 396 counting only the distinct ones).

The product of its digits is 69120, while the sum is 42.

The square root of 18814956 is about 4337.6210069576. The cubic root of 18814956 is about 265.9710711563.

The spelling of 18814956 in words is "eighteen million, eight hundred fourteen thousand, nine hundred fifty-six".