204180 has 48 divisors (see below), whose sum is σ = 592704. Its totient is φ = 52480.

The previous prime is 204173. The next prime is 204233. The reversal of 204180 is 81402.

204180 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2419 + ... + 2501.

It is an arithmetic number, because the mean of its divisors is an integer number (12348).

2²⁰⁴¹⁸⁰ is an apocalyptic number.

204180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296352).

204180 is an abundant number, since it is smaller than the sum of its proper divisors (388524).

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

204180 is a wasteful number, since it uses less digits than its factorization.

204180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 204180 is about 451.8628110389. The cubic root of 204180 is about 58.8849620946.

Adding to 204180 its reverse (81402), we get a palindrome (285582).

The spelling of 204180 in words is "two hundred four thousand, one hundred eighty".