222785928 has 48 divisors (see below), whose sum is σ = 604546800. Its totient is φ = 74118240.

The previous prime is 222785911. The next prime is 222785929. The reversal of 222785928 is 829587222.

222785928 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (222785929) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 38403 + ... + 43821.

It is an arithmetic number, because the mean of its divisors is an integer number (12594725).

Almost surely, 2^222785928 is an apocalyptic number.

It is an amenable number.

222785928 is an abundant number, since it is smaller than the sum of its proper divisors (381760872).

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

222785928 is a wasteful number, since it uses less digits than its factorization.

222785928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6002 (or 5995 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 222785928 is about 14926.0151413564. The cubic root of 222785928 is about 606.2185925133.

The spelling of 222785928 in words is "two hundred twenty-two million, seven hundred eighty-five thousand, nine hundred twenty-eight".