222328320 has 80 divisors (see below), whose sum is σ = 710780400. Its totient is φ = 59285504.

The previous prime is 222328259. The next prime is 222328331. The reversal of 222328320 is 23823222.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6795 + ... + 22154.

It is an arithmetic number, because the mean of its divisors is an integer number (8884755).

Almost surely, 2^222328320 is an apocalyptic number.

222328320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222328320 is an abundant number, since it is smaller than the sum of its proper divisors (488452080).

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

222328320 is an equidigital number, since it uses as much as digits as its factorization.

222328320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28975 (or 28959 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 222328320 is about 14910.6780529928. The cubic root of 222328320 is about 605.8032451687.

The spelling of 222328320 in words is "two hundred twenty-two million, three hundred twenty-eight thousand, three hundred twenty".