220243224 has 32 divisors (see below), whose sum is σ = 559944000. Its totient is φ = 72169632.

The previous prime is 220243223. The next prime is 220243229. The reversal of 220243224 is 422342022.

It is a self number, because there is not a number n which added to its sum of digits gives 220243224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220243223) 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, 76354 + ... + 79185.

It is an arithmetic number, because the mean of its divisors is an integer number (17498250).

Almost surely, 2^220243224 is an apocalyptic number.

220243224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

220243224 is an abundant number, since it is smaller than the sum of its proper divisors (339700776).

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

220243224 is a wasteful number, since it uses less digits than its factorization.

220243224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155607 (or 155603 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 220243224 is about 14840.5937886595. The cubic root of 220243224 is about 603.9034610264.

Adding to 220243224 its reverse (422342022), we get a palindrome (642585246).

The spelling of 220243224 in words is "two hundred twenty million, two hundred forty-three thousand, two hundred twenty-four".