822444 has 24 divisors (see below), whose sum is σ = 2193408. Its totient is φ = 234960.

The previous prime is 822433. The next prime is 822517. The reversal of 822444 is 444228.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 822444.

It is an unprimeable number.

822444 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4812 + ... + 4979.

It is an arithmetic number, because the mean of its divisors is an integer number (91392).

2⁸²²⁴⁴⁴ is an apocalyptic number.

822444 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

822444 is an abundant number, since it is smaller than the sum of its proper divisors (1370964).

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

822444 is a wasteful number, since it uses less digits than its factorization.

822444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9805 (or 9803 counting only the distinct ones).

The product of its digits is 2048, while the sum is 24.

The square root of 822444 is about 906.8869830359. The cubic root of 822444 is about 93.6919142408.

The spelling of 822444 in words is "eight hundred twenty-two thousand, four hundred forty-four".