204489798 has 16 divisors (see below), whose sum is σ = 414740736. Its totient is φ = 67203080.

The previous prime is 204489781. The next prime is 204489823. The reversal of 204489798 is 897984402.

It is a self number, because there is not a number n which added to its sum of digits gives 204489798.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239586 + ... + 240437.

It is an arithmetic number, because the mean of its divisors is an integer number (25921296).

Almost surely, 2^204489798 is an apocalyptic number.

204489798 is an abundant number, since it is smaller than the sum of its proper divisors (210250938).

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

204489798 is a wasteful number, since it uses less digits than its factorization.

204489798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480099.

The product of its (nonzero) digits is 1161216, while the sum is 51.

The square root of 204489798 is about 14299.9929370612. The cubic root of 204489798 is about 589.1472868122.

The spelling of 204489798 in words is "two hundred four million, four hundred eighty-nine thousand, seven hundred ninety-eight".