8422685220 has 24 divisors (see below), whose sum is σ = 23583518784. Its totient is φ = 2246049376.

The previous prime is 8422685191. The next prime is 8422685221. The reversal of 8422685220 is 225862248.

It is not an unprimeable number, because it can be changed into a prime (8422685221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70188984 + ... + 70189103.

It is an arithmetic number, because the mean of its divisors is an integer number (982646616).

Almost surely, 2^8422685220 is an apocalyptic number.

It is an amenable number.

8422685220 is an abundant number, since it is smaller than the sum of its proper divisors (15160833564).

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

8422685220 is a wasteful number, since it uses less digits than its factorization.

8422685220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140378099 (or 140378097 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 39.

The square root of 8422685220 is about 91775.1884770606. The cubic root of 8422685220 is about 2034.6210032974.

The spelling of 8422685220 in words is "eight billion, four hundred twenty-two million, six hundred eighty-five thousand, two hundred twenty".