222642260 has 12 divisors (see below), whose sum is σ = 467548788. Its totient is φ = 89056896.

The previous prime is 222642239. The next prime is 222642263. The reversal of 222642260 is 62246222.

It can be written as a sum of positive squares in 2 ways, for example, as 145974724 + 76667536 = 12082^2 + 8756^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222642263) 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, 5566037 + ... + 5566076.

It is an arithmetic number, because the mean of its divisors is an integer number (38962399).

Almost surely, 2^222642260 is an apocalyptic number.

222642260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222642260 is an abundant number, since it is smaller than the sum of its proper divisors (244906528).

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

222642260 is a wasteful number, since it uses less digits than its factorization.

222642260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11132122 (or 11132120 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 222642260 is about 14921.2016942336. The cubic root of 222642260 is about 606.0882537291.

Adding to 222642260 its reverse (62246222), we get a palindrome (284888482).

The spelling of 222642260 in words is "two hundred twenty-two million, six hundred forty-two thousand, two hundred sixty".