8222888644 has 24 divisors (see below), whose sum is σ = 15320731608. Its totient is φ = 3848209920.

The previous prime is 8222888629. The next prime is 8222888651. The reversal of 8222888644 is 4468882228.

It can be written as a sum of positive squares in 4 ways, for example, as 26244 + 8222862400 = 162^2 + 90680^2 .

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 8222888591 and 8222888600.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321739 + ... + 346354.

It is an arithmetic number, because the mean of its divisors is an integer number (638363817).

Almost surely, 2^8222888644 is an apocalyptic number.

It is an amenable number.

8222888644 is a deficient number, since it is larger than the sum of its proper divisors (7097842964).

8222888644 is a wasteful number, since it uses less digits than its factorization.

8222888644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668295 (or 668293 counting only the distinct ones).

The product of its digits is 3145728, while the sum is 52.

The square root of 8222888644 is about 90680.1447065453. The cubic root of 8222888644 is about 2018.4041773163.

The spelling of 8222888644 in words is "eight billion, two hundred twenty-two million, eight hundred eighty-eight thousand, six hundred forty-four".