204115422 has 16 divisors (see below), whose sum is σ = 466549632. Its totient is φ = 58318680.

The previous prime is 204115411. The next prime is 204115441. The reversal of 204115422 is 224511402.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent 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, 2429904 + ... + 2429987.

It is an arithmetic number, because the mean of its divisors is an integer number (29159352).

Almost surely, 2^204115422 is an apocalyptic number.

204115422 is an abundant number, since it is smaller than the sum of its proper divisors (262434210).

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

204115422 is a wasteful number, since it uses less digits than its factorization.

204115422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4859903.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 204115422 is about 14286.8968639100. The cubic root of 204115422 is about 588.7875339958.

Adding to 204115422 its reverse (224511402), we get a palindrome (428626824).

The spelling of 204115422 in words is "two hundred four million, one hundred fifteen thousand, four hundred twenty-two".