204847842 has 32 divisors (see below), whose sum is σ = 417605760. Its totient is φ = 66977280.

The previous prime is 204847837. The next prime is 204847861. The reversal of 204847842 is 248748402.

It is a self number, because there is not a number n which added to its sum of digits gives 204847842.

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, 65842 + ... + 68882.

It is an arithmetic number, because the mean of its divisors is an integer number (13050180).

Almost surely, 2^204847842 is an apocalyptic number.

204847842 is an abundant number, since it is smaller than the sum of its proper divisors (212757918).

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

204847842 is a wasteful number, since it uses less digits than its factorization.

204847842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3258.

The product of its (nonzero) digits is 114688, while the sum is 39.

The square root of 204847842 is about 14312.5064890815. The cubic root of 204847842 is about 589.4909350201.

The spelling of 204847842 in words is "two hundred four million, eight hundred forty-seven thousand, eight hundred forty-two".