822492 has 72 divisors (see below), whose sum is σ = 2376192. Its totient is φ = 237600.

The previous prime is 822433. The next prime is 822517. The reversal of 822492 is 294228.

822492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

822492 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 23 ways as a sum of consecutive naturals, for example, 12243 + ... + 12309.

2⁸²²⁴⁹² 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 822492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1188096).

822492 is an abundant number, since it is smaller than the sum of its proper divisors (1553700).

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

822492 is a wasteful number, since it uses less digits than its factorization.

822492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 114 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 822492 is about 906.9134468074. The cubic root of 822492 is about 93.6937369077.

It can be divided in two parts, 8 and 22492, that added together give a square (22500 = 150²).

The spelling of 822492 in words is "eight hundred twenty-two thousand, four hundred ninety-two".