204820992 has 60 divisors (see below), whose sum is σ = 591140550. Its totient is φ = 68272128.

The previous prime is 204820961. The next prime is 204821017. The reversal of 204820992 is 299028402.

It can be written as a sum of positive squares in only one way, i.e., 140564736 + 64256256 = 11856^2 + 8016^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

204820992 is a modest number, since divided by 20992 gives 2048 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17617 + ... + 26832.

Almost surely, 2^204820992 is an apocalyptic number.

It is an amenable number.

204820992 is an abundant number, since it is smaller than the sum of its proper divisors (386319558).

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

204820992 is an equidigital number, since it uses as much as digits as its factorization.

204820992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44473 (or 44454 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 204820992 is about 14311.5684675021. The cubic root of 204820992 is about 589.4651784666.

The spelling of 204820992 in words is "two hundred four million, eight hundred twenty thousand, nine hundred ninety-two".