18222196 has 12 divisors (see below), whose sum is σ = 32630752. Its totient is φ = 8899128.

The previous prime is 18222173. The next prime is 18222223. The reversal of 18222196 is 69122281.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52800 + ... + 53143.

Almost surely, 2^18222196 is an apocalyptic number.

It is an amenable number.

18222196 is a deficient number, since it is larger than the sum of its proper divisors (14408556).

18222196 is a wasteful number, since it uses less digits than its factorization.

18222196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105990 (or 105988 counting only the distinct ones).

The product of its digits is 3456, while the sum is 31.

The square root of 18222196 is about 4268.7464202035. The cubic root of 18222196 is about 263.1480995400.

The spelling of 18222196 in words is "eighteen million, two hundred twenty-two thousand, one hundred ninety-six".