224240243 has 4 divisors (see below), whose sum is σ = 229011360. Its totient is φ = 219469128.

The previous prime is 224240213. The next prime is 224240257. The reversal of 224240243 is 342042422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342042422 = 2 ⋅171021211.

It is a cyclic number.

It is not a de Polignac number, because 224240243 - 2⁸ = 224239987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224240213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2385488 + ... + 2385581.

It is an arithmetic number, because the mean of its divisors is an integer number (57252840).

Almost surely, 2^224240243 is an apocalyptic number.

224240243 is a deficient number, since it is larger than the sum of its proper divisors (4771117).

224240243 is an equidigital number, since it uses as much as digits as its factorization.

224240243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4771116.

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

The square root of 224240243 is about 14974.6533515805. The cubic root of 224240243 is about 607.5348356231.

Adding to 224240243 its reverse (342042422), we get a palindrome (566282665).

The spelling of 224240243 in words is "two hundred twenty-four million, two hundred forty thousand, two hundred forty-three".