222891488 has 48 divisors (see below), whose sum is σ = 479654784. Its totient is φ = 101498880.

The previous prime is 222891481. The next prime is 222891491. The reversal of 222891488 is 884198222.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222891481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10256 + ... + 23472.

It is an arithmetic number, because the mean of its divisors is an integer number (9992808).

Almost surely, 2^222891488 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 222891488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239827392).

222891488 is an abundant number, since it is smaller than the sum of its proper divisors (256763296).

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

222891488 is a wasteful number, since it uses less digits than its factorization.

222891488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13275 (or 13267 counting only the distinct ones).

The product of its digits is 147456, while the sum is 44.

The square root of 222891488 is about 14929.5508304838. The cubic root of 222891488 is about 606.3143231712.

The spelling of 222891488 in words is "two hundred twenty-two million, eight hundred ninety-one thousand, four hundred eighty-eight".