822489560 has 48 divisors (see below), whose sum is σ = 1877493600. Its totient is φ = 324282560.

The previous prime is 822489523. The next prime is 822489583. The reversal of 822489560 is 65984228.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 199601 + ... + 203679.

It is an arithmetic number, because the mean of its divisors is an integer number (39114450).

Almost surely, 2^822489560 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 822489560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (938746800).

822489560 is an abundant number, since it is smaller than the sum of its proper divisors (1055004040).

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

822489560 is a wasteful number, since it uses less digits than its factorization.

822489560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4232 (or 4157 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 822489560 is about 28679.0787857630. The cubic root of 822489560 is about 936.9364425718.

The spelling of 822489560 in words is "eight hundred twenty-two million, four hundred eighty-nine thousand, five hundred sixty".