204798 has 32 divisors (see below), whose sum is σ = 466560. Its totient is φ = 59360.

The previous prime is 204797. The next prime is 204803. The reversal of 204798 is 897402.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204791) 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, 1861 + ... + 1967.

It is an arithmetic number, because the mean of its divisors is an integer number (14580).

2²⁰⁴⁷⁹⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233280).

204798 is an abundant number, since it is smaller than the sum of its proper divisors (261762).

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

204798 is a wasteful number, since it uses less digits than its factorization.

204798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 204798 is about 452.5461302453. The cubic root of 204798 is about 58.9443121010.

It can be divided in two parts, 2047 and 98, that added together give a triangular number (2145 = T₆₅).

The spelling of 204798 in words is "two hundred four thousand, seven hundred ninety-eight".