18322196 has 6 divisors (see below), whose sum is σ = 32063850. Its totient is φ = 9161096.

The previous prime is 18322193. The next prime is 18322217. The reversal of 18322196 is 69122381.

It can be written as a sum of positive squares in only one way, i.e., 13322500 + 4999696 = 3650^2 + 2236^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18322193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2290271 + ... + 2290278.

It is an arithmetic number, because the mean of its divisors is an integer number (5343975).

Almost surely, 2^18322196 is an apocalyptic number.

It is an amenable number.

18322196 is a deficient number, since it is larger than the sum of its proper divisors (13741654).

18322196 is a wasteful number, since it uses less digits than its factorization.

18322196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4580553 (or 4580551 counting only the distinct ones).

The product of its digits is 5184, while the sum is 32.

The square root of 18322196 is about 4280.4434349726. The cubic root of 18322196 is about 263.6285908277.

The spelling of 18322196 in words is "eighteen million, three hundred twenty-two thousand, one hundred ninety-six".