224344213 has 4 divisors (see below), whose sum is σ = 225981900. Its totient is φ = 222706528.

The previous prime is 224344199. The next prime is 224344243. The reversal of 224344213 is 312443422.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 178008964 + 46335249 = 13342^2 + 6807^2 .

It is a cyclic number.

It is not a de Polignac number, because 224344213 - 2⁹ = 224343701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224344243) 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, 818638 + ... + 818911.

It is an arithmetic number, because the mean of its divisors is an integer number (56495475).

Almost surely, 2^224344213 is an apocalyptic number.

It is an amenable number.

224344213 is a deficient number, since it is larger than the sum of its proper divisors (1637687).

224344213 is a wasteful number, since it uses less digits than its factorization.

224344213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1637686.

The product of its digits is 4608, while the sum is 25.

The square root of 224344213 is about 14978.1244820572. The cubic root of 224344213 is about 607.6287165374.

Adding to 224344213 its reverse (312443422), we get a palindrome (536787635).

The spelling of 224344213 in words is "two hundred twenty-four million, three hundred forty-four thousand, two hundred thirteen".