222397008 has 80 divisors (see below), whose sum is σ = 586629120. Its totient is φ = 72588672.

The previous prime is 222396991. The next prime is 222397031. The reversal of 222397008 is 800793222.

It is a self number, because there is not a number n which added to its sum of digits gives 222397008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 845485 + ... + 845747.

It is an arithmetic number, because the mean of its divisors is an integer number (7332864).

Almost surely, 2^222397008 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 222397008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293314560).

222397008 is an abundant number, since it is smaller than the sum of its proper divisors (364232112).

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

222397008 is a wasteful number, since it uses less digits than its factorization.

222397008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576 (or 570 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 222397008 is about 14912.9811908954. The cubic root of 222397008 is about 605.8656260788.

The spelling of 222397008 in words is "two hundred twenty-two million, three hundred ninety-seven thousand, eight".