222240024 has 112 divisors (see below), whose sum is σ = 637437600. Its totient is φ = 72581184.

The previous prime is 222240001. The next prime is 222240043. The reversal of 222240024 is 420042222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 222239979 and 222240006.

It is a congruent number.

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, 308737 + ... + 309455.

Almost surely, 2^222240024 is an apocalyptic number.

222240024 is a gapful number since it is divisible by the number (24) 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 222240024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318718800).

222240024 is an abundant number, since it is smaller than the sum of its proper divisors (415197576).

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

222240024 is an equidigital number, since it uses as much as digits as its factorization.

222240024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796 (or 777 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 222240024 is about 14907.7169278196. The cubic root of 222240024 is about 605.7230378340.

Adding to 222240024 its reverse (420042222), we get a palindrome (642282246).

The spelling of 222240024 in words is "two hundred twenty-two million, two hundred forty thousand, twenty-four".