204221442 has 32 divisors (see below), whose sum is σ = 438409152. Its totient is φ = 63189504.

The previous prime is 204221431. The next prime is 204221467. The reversal of 204221442 is 244122402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6268 + ... + 21159.

It is an arithmetic number, because the mean of its divisors is an integer number (13700286).

Almost surely, 2^204221442 is an apocalyptic number.

204221442 is an abundant number, since it is smaller than the sum of its proper divisors (234187710).

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

204221442 is a wasteful number, since it uses less digits than its factorization.

204221442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27522.

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 204221442 is about 14290.6067750813. The cubic root of 204221442 is about 588.8894574550.

Adding to 204221442 its reverse (244122402), we get a palindrome (448343844).

The spelling of 204221442 in words is "two hundred four million, two hundred twenty-one thousand, four hundred forty-two".