18894196 has 12 divisors (see below), whose sum is σ = 34205220. Its totient is φ = 9121280.

The previous prime is 18894181. The next prime is 18894199. The reversal of 18894196 is 69149881.

It can be written as a sum of positive squares in 2 ways, for example, as 12320100 + 6574096 = 3510^2 + 2564^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18894199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81325 + ... + 81556.

It is an arithmetic number, because the mean of its divisors is an integer number (2850435).

Almost surely, 2^18894196 is an apocalyptic number.

It is an amenable number.

18894196 is a deficient number, since it is larger than the sum of its proper divisors (15311024).

18894196 is a wasteful number, since it uses less digits than its factorization.

18894196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162914 (or 162912 counting only the distinct ones).

The product of its digits is 124416, while the sum is 46.

The square root of 18894196 is about 4346.7454491838. The cubic root of 18894196 is about 266.3439310919.

The spelling of 18894196 in words is "eighteen million, eight hundred ninety-four thousand, one hundred ninety-six".