224243223 has 4 divisors (see below), whose sum is σ = 298990968. Its totient is φ = 149495480.

The previous prime is 224243221. The next prime is 224243231. The reversal of 224243223 is 322342422.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 224243223 - 2¹ = 224243221 is a prime.

It is a super-2 number, since 2×224243223² = 100570046122855458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 224243193 and 224243202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224243221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37373868 + ... + 37373873.

It is an arithmetic number, because the mean of its divisors is an integer number (74747742).

Almost surely, 2^224243223 is an apocalyptic number.

224243223 is a deficient number, since it is larger than the sum of its proper divisors (74747745).

224243223 is an equidigital number, since it uses as much as digits as its factorization.

224243223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74747744.

The product of its digits is 4608, while the sum is 24.

The square root of 224243223 is about 14974.7528527185. The cubic root of 224243223 is about 607.5375268525.

Adding to 224243223 its reverse (322342422), we get a palindrome (546585645).

The spelling of 224243223 in words is "two hundred twenty-four million, two hundred forty-three thousand, two hundred twenty-three".