822878320 has 60 divisors (see below), whose sum is σ = 2089279224. Its totient is φ = 298919040.

The previous prime is 822878269. The next prime is 822878347. The reversal of 822878320 is 23878228.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 850477 + ... + 851443.

Almost surely, 2^822878320 is an apocalyptic number.

822878320 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 822878320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1044639612).

822878320 is an abundant number, since it is smaller than the sum of its proper divisors (1266400904).

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

822878320 is an equidigital number, since it uses as much as digits as its factorization.

822878320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1958 (or 985 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 822878320 is about 28685.8557480860. The cubic root of 822878320 is about 937.0840375713.

The spelling of 822878320 in words is "eight hundred twenty-two million, eight hundred seventy-eight thousand, three hundred twenty".