8223993228 has 24 divisors (see below), whose sum is σ = 20933801280. Its totient is φ = 2492119120.

The previous prime is 8223993223. The next prime is 8223993263.

8223993228 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×8223993228² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8223993223) 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, 31151358 + ... + 31151621.

It is an arithmetic number, because the mean of its divisors is an integer number (872241720).

Almost surely, 2^8223993228 is an apocalyptic number.

It is an amenable number.

8223993228 is an abundant number, since it is smaller than the sum of its proper divisors (12709808052).

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

8223993228 is a wasteful number, since it uses less digits than its factorization.

8223993228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62302997 (or 62302995 counting only the distinct ones).

The product of its digits is 746496, while the sum is 48.

The square root of 8223993228 is about 90686.2350525150. The cubic root of 8223993228 is about 2018.4945509565.

The spelling of 8223993228 in words is "eight billion, two hundred twenty-three million, nine hundred ninety-three thousand, two hundred twenty-eight".