222597968 has 40 divisors (see below), whose sum is σ = 447460200. Its totient is φ = 107147264.

The previous prime is 222597961. The next prime is 222598001. The reversal of 222597968 is 869795222.

It can be written as a sum of positive squares in 4 ways, for example, as 87759424 + 134838544 = 9368^2 + 11612^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222597961) 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 7 ways as a sum of consecutive naturals, for example, 274748 + ... + 275556.

It is an arithmetic number, because the mean of its divisors is an integer number (11186505).

Almost surely, 2^222597968 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 222597968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223730100).

222597968 is an abundant number, since it is smaller than the sum of its proper divisors (224862232).

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

222597968 is a wasteful number, since it uses less digits than its factorization.

222597968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439 (or 1433 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 50.

The square root of 222597968 is about 14919.7174235975. The cubic root of 222597968 is about 606.0480597407.

The spelling of 222597968 in words is "two hundred twenty-two million, five hundred ninety-seven thousand, nine hundred sixty-eight".