222397488 has 140 divisors (see below), whose sum is σ = 674949360. Its totient is φ = 70823808.

The previous prime is 222397477. The next prime is 222397501. The reversal of 222397488 is 884793222.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 267858 + ... + 268686.

Almost surely, 2^222397488 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 222397488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337474680).

222397488 is an abundant number, since it is smaller than the sum of its proper divisors (452551872).

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

222397488 is an equidigital number, since it uses as much as digits as its factorization.

222397488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878 (or 857 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 222397488 is about 14912.9972842484. The cubic root of 222397488 is about 605.8660619589.

The spelling of 222397488 in words is "two hundred twenty-two million, three hundred ninety-seven thousand, four hundred eighty-eight".