204222642 has 24 divisors (see below), whose sum is σ = 442283184. Its totient is φ = 62837424.

The previous prime is 204222607. The next prime is 204222643. The reversal of 204222642 is 246222402.

204222642 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (204222643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99688 + ... + 101715.

It is an arithmetic number, because the mean of its divisors is an integer number (18428466).

Almost surely, 2^204222642 is an apocalyptic number.

204222642 is an abundant number, since it is smaller than the sum of its proper divisors (238060542).

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

204222642 is a wasteful number, since it uses less digits than its factorization.

204222642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201434 (or 201421 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 204222642 is about 14290.6487606406. The cubic root of 204222642 is about 588.8906108859.

The spelling of 204222642 in words is "two hundred four million, two hundred twenty-two thousand, six hundred forty-two".