220344224 has 24 divisors (see below), whose sum is σ = 436977828. Its totient is φ = 109365760.

The previous prime is 220344217. The next prime is 220344239. The reversal of 220344224 is 422443022.

It can be written as a sum of positive squares in 2 ways, for example, as 217031824 + 3312400 = 14732^2 + 1820^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 220344224.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20747 + ... + 29514.

Almost surely, 2^220344224 is an apocalyptic number.

It is an amenable number.

220344224 is a deficient number, since it is larger than the sum of its proper divisors (216633604).

220344224 is a wasteful number, since it uses less digits than its factorization.

220344224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50408 (or 50400 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 220344224 is about 14843.9962274315. The cubic root of 220344224 is about 603.9957603901.

Adding to 220344224 its reverse (422443022), we get a palindrome (642787246).

The spelling of 220344224 in words is "two hundred twenty million, three hundred forty-four thousand, two hundred twenty-four".