18122196 has 24 divisors (see below), whose sum is σ = 42558880. Its totient is φ = 6001632.

The previous prime is 18122191. The next prime is 18122201. The reversal of 18122196 is 69122181.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18122191) and next prime (18122201).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18122191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2926 + ... + 6693.

Almost surely, 2^18122196 is an apocalyptic number.

It is an amenable number.

18122196 is an abundant number, since it is smaller than the sum of its proper divisors (24436684).

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

18122196 is a wasteful number, since it uses less digits than its factorization.

18122196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9783 (or 9781 counting only the distinct ones).

The product of its digits is 1728, while the sum is 30.

The square root of 18122196 is about 4257.0172656450. The cubic root of 18122196 is about 262.6658471234.

The spelling of 18122196 in words is "eighteen million, one hundred twenty-two thousand, one hundred ninety-six".