822204 has 48 divisors (see below), whose sum is σ = 2231040. Its totient is φ = 261360.

The previous prime is 822197. The next prime is 822221. The reversal of 822204 is 402228.

822204 = 58² + 59² + ... + 138².

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

It is a congruent number.

It is an unprimeable number.

822204 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2319 + ... + 2649.

It is an arithmetic number, because the mean of its divisors is an integer number (46480).

2⁸²²²⁰⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 822204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1115520).

822204 is an abundant number, since it is smaller than the sum of its proper divisors (1408836).

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

822204 is a wasteful number, since it uses less digits than its factorization.

822204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367 (or 359 counting only the distinct ones).

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

The square root of 822204 is about 906.7546525935. The cubic root of 822204 is about 93.6827998423.

The spelling of 822204 in words is "eight hundred twenty-two thousand, two hundred four".