204864044 has 48 divisors (see below), whose sum is σ = 457906176. Its totient is φ = 77865600.

The previous prime is 204864041. The next prime is 204864053. The reversal of 204864044 is 440468402.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 204864044.

It is not an unprimeable number, because it can be changed into a prime (204864041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4517 + ... + 20739.

It is an arithmetic number, because the mean of its divisors is an integer number (9539712).

Almost surely, 2^204864044 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 204864044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228953088).

204864044 is an abundant number, since it is smaller than the sum of its proper divisors (253042132).

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

204864044 is a wasteful number, since it uses less digits than its factorization.

204864044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16286 (or 16284 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

The square root of 204864044 is about 14313.0724863671. The cubic root of 204864044 is about 589.5064761167.

The spelling of 204864044 in words is "two hundred four million, eight hundred sixty-four thousand, forty-four".