222864280 has 16 divisors (see below), whose sum is σ = 501444720. Its totient is φ = 89145696.

The previous prime is 222864251. The next prime is 222864289. The reversal of 222864280 is 82468222.

222864280 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222864289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2785764 + ... + 2785843.

It is an arithmetic number, because the mean of its divisors is an integer number (31340295).

Almost surely, 2^222864280 is an apocalyptic number.

222864280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222864280 is an abundant number, since it is smaller than the sum of its proper divisors (278580440).

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

222864280 is a wasteful number, since it uses less digits than its factorization.

222864280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5571618 (or 5571614 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 222864280 is about 14928.6395897282. The cubic root of 222864280 is about 606.2896515675.

The spelling of 222864280 in words is "two hundred twenty-two million, eight hundred sixty-four thousand, two hundred eighty".