18836994 has 32 divisors (see below), whose sum is σ = 41290560. Its totient is φ = 5681600.

The previous prime is 18836971. The next prime is 18837001. The reversal of 18836994 is 49963881.

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, 17224 + ... + 18284.

It is an arithmetic number, because the mean of its divisors is an integer number (1290330).

Almost surely, 2^18836994 is an apocalyptic number.

18836994 is an abundant number, since it is smaller than the sum of its proper divisors (22453566).

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

18836994 is a wasteful number, since it uses less digits than its factorization.

18836994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346.

The product of its digits is 373248, while the sum is 48.

The square root of 18836994 is about 4340.1605961070. The cubic root of 18836994 is about 266.0748748083.

The spelling of 18836994 in words is "eighteen million, eight hundred thirty-six thousand, nine hundred ninety-four".