222320472 has 64 divisors (see below), whose sum is σ = 615427200. Its totient is φ = 66359040.

The previous prime is 222320419. The next prime is 222320473. The reversal of 222320472 is 274023222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222320473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11404 + ... + 23972.

It is an arithmetic number, because the mean of its divisors is an integer number (9616050).

Almost surely, 2^222320472 is an apocalyptic number.

222320472 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222320472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307713600).

222320472 is an abundant number, since it is smaller than the sum of its proper divisors (393106728).

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

222320472 is a wasteful number, since it uses less digits than its factorization.

222320472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12656 (or 12652 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 222320472 is about 14910.4148835638. The cubic root of 222320472 is about 605.7961169723.

Adding to 222320472 its reverse (274023222), we get a palindrome (496343694).

The spelling of 222320472 in words is "two hundred twenty-two million, three hundred twenty thousand, four hundred seventy-two".