222487668 has 96 divisors (see below), whose sum is σ = 627419520. Its totient is φ = 67772160.

The previous prime is 222487667. The next prime is 222487669. The reversal of 222487668 is 866784222.

It is an interprime number because it is at equal distance from previous prime (222487667) and next prime (222487669).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222487667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 149488 + ... + 150968.

It is an arithmetic number, because the mean of its divisors is an integer number (6535620).

Almost surely, 2^222487668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222487668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313709760).

222487668 is an abundant number, since it is smaller than the sum of its proper divisors (404931852).

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

222487668 is a wasteful number, since it uses less digits than its factorization.

222487668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614 (or 1606 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 222487668 is about 14916.0205148692. The cubic root of 222487668 is about 605.9479418079.

The spelling of 222487668 in words is "two hundred twenty-two million, four hundred eighty-seven thousand, six hundred sixty-eight".