324344221 has 4 divisors (see below), whose sum is σ = 324648700. Its totient is φ = 324039744.

The previous prime is 324344201. The next prime is 324344233. The reversal of 324344221 is 122443423.

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 97239321 + 227104900 = 9861^2 + 15070^2 .

It is a cyclic number.

It is not a de Polignac number, because 324344221 - 2⁷ = 324344093 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 (324344201) 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, 150636 + ... + 152773.

It is an arithmetic number, because the mean of its divisors is an integer number (81162175).

Almost surely, 2^324344221 is an apocalyptic number.

It is an amenable number.

324344221 is a deficient number, since it is larger than the sum of its proper divisors (304479).

324344221 is a wasteful number, since it uses less digits than its factorization.

324344221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304478.

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

The square root of 324344221 is about 18009.5591561815. The cubic root of 324344221 is about 687.0716907304.

Adding to 324344221 its reverse (122443423), we get a palindrome (446787644).

The spelling of 324344221 in words is "three hundred twenty-four million, three hundred forty-four thousand, two hundred twenty-one".