18243196 has 24 divisors (see below), whose sum is σ = 32944464. Its totient is φ = 8833920.

The previous prime is 18243161. The next prime is 18243241. The reversal of 18243196 is 69134281.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28051 + ... + 28693.

It is an arithmetic number, because the mean of its divisors is an integer number (1372686).

Almost surely, 2^18243196 is an apocalyptic number.

It is an amenable number.

18243196 is a deficient number, since it is larger than the sum of its proper divisors (14701268).

18243196 is a wasteful number, since it uses less digits than its factorization.

18243196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861 (or 859 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 18243196 is about 4271.2054504554. The cubic root of 18243196 is about 263.2491482575.

The spelling of 18243196 in words is "eighteen million, two hundred forty-three thousand, one hundred ninety-six".