222915380 has 24 divisors (see below), whose sum is σ = 480775848. Its totient is φ = 86755968.

The previous prime is 222915361. The next prime is 222915419. The reversal of 222915380 is 83519222.

It is a happy number.

222915380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9872164 + 213043216 = 3142^2 + 14596^2 .

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, 149879 + ... + 151358.

It is an arithmetic number, because the mean of its divisors is an integer number (20032327).

Almost surely, 2^222915380 is an apocalyptic number.

222915380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222915380 is an abundant number, since it is smaller than the sum of its proper divisors (257860468).

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

222915380 is a wasteful number, since it uses less digits than its factorization.

222915380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301283 (or 301281 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 222915380 is about 14930.3509670737. The cubic root of 222915380 is about 606.3359862449.

The spelling of 222915380 in words is "two hundred twenty-two million, nine hundred fifteen thousand, three hundred eighty".