822189472 has 48 divisors (see below), whose sum is σ = 1746995040. Its totient is φ = 378646272.

The previous prime is 822189449. The next prime is 822189481. The reversal of 822189472 is 274981228.

It is an unprimeable 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 7 ways as a sum of consecutive naturals, for example, 215679 + ... + 219457.

It is an arithmetic number, because the mean of its divisors is an integer number (36395730).

Almost surely, 2^822189472 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 822189472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (873497520).

822189472 is an abundant number, since it is smaller than the sum of its proper divisors (924805568).

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

822189472 is a wasteful number, since it uses less digits than its factorization.

822189472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4325 (or 4317 counting only the distinct ones).

The product of its digits is 129024, while the sum is 43.

The square root of 822189472 is about 28673.8464807218. The cubic root of 822189472 is about 936.8224806047.

The spelling of 822189472 in words is "eight hundred twenty-two million, one hundred eighty-nine thousand, four hundred seventy-two".