324444321 has 6 divisors (see below), whose sum is σ = 468641810. Its totient is φ = 216296208.

The previous prime is 324444317. The next prime is 324444353. The reversal of 324444321 is 123444423.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 301404321 + 23040000 = 17361^2 + 4800^2 .

It is not a de Polignac number, because 324444321 - 2² = 324444317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (324444121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18024676 + ... + 18024693.

Almost surely, 2^324444321 is an apocalyptic number.

It is an amenable number.

324444321 is a deficient number, since it is larger than the sum of its proper divisors (144197489).

324444321 is a wasteful number, since it uses less digits than its factorization.

324444321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36049375 (or 36049372 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 324444321 is about 18012.3380214785. The cubic root of 324444321 is about 687.1423654413.

Adding to 324444321 its reverse (123444423), we get a palindrome (447888744).

The spelling of 324444321 in words is "three hundred twenty-four million, four hundred forty-four thousand, three hundred twenty-one".