18422202 has 16 divisors (see below), whose sum is σ = 37743552. Its totient is φ = 5990880.

The previous prime is 18422197. The next prime is 18422213. The reversal of 18422202 is 20222481.

It is a happy 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, 37198 + ... + 37689.

It is an arithmetic number, because the mean of its divisors is an integer number (2358972).

Almost surely, 2^18422202 is an apocalyptic number.

18422202 is an abundant number, since it is smaller than the sum of its proper divisors (19321350).

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

18422202 is a wasteful number, since it uses less digits than its factorization.

18422202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74933.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 18422202 is about 4292.1092716752. The cubic root of 18422202 is about 264.1073656502.

Adding to 18422202 its reverse (20222481), we get a palindrome (38644683).

The spelling of 18422202 in words is "eighteen million, four hundred twenty-two thousand, two hundred two".