18822204 has 18 divisors (see below), whose sum is σ = 47578440. Its totient is φ = 6274056.

The previous prime is 18822187. The next prime is 18822241. The reversal of 18822204 is 40222881.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 261384 + ... + 261455.

Almost surely, 2^18822204 is an apocalyptic number.

It is an amenable number.

18822204 is an abundant number, since it is smaller than the sum of its proper divisors (28756236).

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

18822204 is a wasteful number, since it uses less digits than its factorization.

18822204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522849 (or 522844 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 18822204 is about 4338.4564075256. The cubic root of 18822204 is about 266.0052197140.

The spelling of 18822204 in words is "eighteen million, eight hundred twenty-two thousand, two hundred four".