9822387220 has 36 divisors (see below), whose sum is σ = 21136218012. Its totient is φ = 3832019200.

The previous prime is 9822387191. The next prime is 9822387221. The reversal of 9822387220 is 227832289.

It can be written as a sum of positive squares in 6 ways, for example, as 3860385424 + 5962001796 = 62132^2 + 77214^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9822387221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2836290 + ... + 2839750.

It is an arithmetic number, because the mean of its divisors is an integer number (587117167).

Almost surely, 2^9822387220 is an apocalyptic number.

It is an amenable number.

9822387220 is an abundant number, since it is smaller than the sum of its proper divisors (11313830792).

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

9822387220 is an equidigital number, since it uses as much as digits as its factorization.

9822387220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6972 (or 3509 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 9822387220 is about 99107.9573999989. The cubic root of 9822387220 is about 2141.6032487458.

The spelling of 9822387220 in words is "nine billion, eight hundred twenty-two million, three hundred eighty-seven thousand, two hundred twenty".