204384906 has 48 divisors (see below), whose sum is σ = 484043040. Its totient is φ = 61812960.

The previous prime is 204384899. The next prime is 204384967. The reversal of 204384906 is 609483402.

It is a happy number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 200065 + ... + 201083.

It is an arithmetic number, because the mean of its divisors is an integer number (10084230).

Almost surely, 2^204384906 is an apocalyptic number.

204384906 is an abundant number, since it is smaller than the sum of its proper divisors (279658134).

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

204384906 is a wasteful number, since it uses less digits than its factorization.

204384906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051 (or 2048 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 204384906 is about 14296.3249123682. The cubic root of 204384906 is about 589.0465362174.

The spelling of 204384906 in words is "two hundred four million, three hundred eighty-four thousand, nine hundred six".