204822 has 16 divisors (see below), whose sum is σ = 455280. Its totient is φ = 68256.

The previous prime is 204821. The next prime is 204857. The reversal of 204822 is 228402.

204822 is nontrivially palindromic in base 8.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 204795 and 204804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1843 + ... + 1950.

It is an arithmetic number, because the mean of its divisors is an integer number (28455).

2²⁰⁴⁸²² is an apocalyptic number.

204822 is an abundant number, since it is smaller than the sum of its proper divisors (250458).

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

204822 is a wasteful number, since it uses less digits than its factorization.

204822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3804 (or 3798 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 204822 is about 452.5726461023. The cubic root of 204822 is about 58.9466145457.

The spelling of 204822 in words is "two hundred four thousand, eight hundred twenty-two".