222455320 has 16 divisors (see below), whose sum is σ = 500524560. Its totient is φ = 88982112.

The previous prime is 222455281. The next prime is 222455323. The reversal of 222455320 is 23554222.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222455323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2780652 + ... + 2780731.

It is an arithmetic number, because the mean of its divisors is an integer number (31282785).

Almost surely, 2^222455320 is an apocalyptic number.

222455320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222455320 is an abundant number, since it is smaller than the sum of its proper divisors (278069240).

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

222455320 is a wasteful number, since it uses less digits than its factorization.

222455320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5561394 (or 5561390 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 222455320 is about 14914.9361379793. The cubic root of 222455320 is about 605.9185736572.

The spelling of 222455320 in words is "two hundred twenty-two million, four hundred fifty-five thousand, three hundred twenty".