204566928 has 80 divisors (see below), whose sum is σ = 550411200. Its totient is φ = 65390080.

The previous prime is 204566911. The next prime is 204566959. The reversal of 204566928 is 829665402.

It is a self number, because there is not a number n which added to its sum of digits gives 204566928.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 248758 + ... + 249578.

It is an arithmetic number, because the mean of its divisors is an integer number (6880140).

Almost surely, 2^204566928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204566928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275205600).

204566928 is an abundant number, since it is smaller than the sum of its proper divisors (345844272).

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

204566928 is a wasteful number, since it uses less digits than its factorization.

204566928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040 (or 1034 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 204566928 is about 14302.6895372863. The cubic root of 204566928 is about 589.2213495425.

The spelling of 204566928 in words is "two hundred four million, five hundred sixty-six thousand, nine hundred twenty-eight".