680222228 has 24 divisors (see below), whose sum is σ = 1360998912. Its totient is φ = 291405024.

The previous prime is 680222189. The next prime is 680222237. The reversal of 680222228 is 822222086.

It is a junction number, because it is equal to n+sod(n) for n = 680222194 and 680222203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123101 + ... + 128507.

It is an arithmetic number, because the mean of its divisors is an integer number (56708288).

Almost surely, 2^680222228 is an apocalyptic number.

It is an amenable number.

680222228 is an abundant number, since it is smaller than the sum of its proper divisors (680776684).

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

680222228 is a wasteful number, since it uses less digits than its factorization.

680222228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9911 (or 9909 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 680222228 is about 26081.0703001238. The cubic root of 680222228 is about 879.4617179849.

The spelling of 680222228 in words is "six hundred eighty million, two hundred twenty-two thousand, two hundred twenty-eight".