204904842 has 16 divisors (see below), whose sum is σ = 433916352. Its totient is φ = 64283840.

The previous prime is 204904841. The next prime is 204904877. The reversal of 204904842 is 248409402.

204904842 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 (204904841) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1004334 + ... + 1004537.

It is an arithmetic number, because the mean of its divisors is an integer number (27119772).

Almost surely, 2^204904842 is an apocalyptic number.

204904842 is an abundant number, since it is smaller than the sum of its proper divisors (229011510).

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

204904842 is a wasteful number, since it uses less digits than its factorization.

204904842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2008893.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 204904842 is about 14314.4976160535. The cubic root of 204904842 is about 589.5456062774.

The spelling of 204904842 in words is "two hundred four million, nine hundred four thousand, eight hundred forty-two".