822181080 has 128 divisors (see below), whose sum is σ = 2836270080. Its totient is φ = 186769920.

The previous prime is 822181067. The next prime is 822181093. The reversal of 822181080 is 80181228.

It is an interprime number because it is at equal distance from previous prime (822181067) and next prime (822181093).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137350 + ... + 143210.

It is an arithmetic number, because the mean of its divisors is an integer number (22158360).

Almost surely, 2^822181080 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 822181080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1418135040).

822181080 is an abundant number, since it is smaller than the sum of its proper divisors (2014089000).

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

822181080 is a wasteful number, since it uses less digits than its factorization.

822181080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6049 (or 6045 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 30.

The square root of 822181080 is about 28673.7001449063. The cubic root of 822181080 is about 936.8192932449.

The spelling of 822181080 in words is "eight hundred twenty-two million, one hundred eighty-one thousand, eighty".