8220638288 has 20 divisors (see below), whose sum is σ = 16619986848. Its totient is φ = 3931609440.

The previous prime is 8220638273. The next prime is 8220638329. The reversal of 8220638288 is 8828360228.

It is a happy number.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11168978 + ... + 11169713.

Almost surely, 2^8220638288 is an apocalyptic number.

It is an amenable number.

8220638288 is an abundant number, since it is smaller than the sum of its proper divisors (8399348560).

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

8220638288 is a wasteful number, since it uses less digits than its factorization.

8220638288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22338722 (or 22338716 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 47.

The square root of 8220638288 is about 90667.7356505609. The cubic root of 8220638288 is about 2018.2200351185.

The spelling of 8220638288 in words is "eight billion, two hundred twenty million, six hundred thirty-eight thousand, two hundred eighty-eight".