324440217 has 6 divisors (see below), whose sum is σ = 468635882. Its totient is φ = 216293472.

The previous prime is 324440213. The next prime is 324440239. The reversal of 324440217 is 712044423.

324440217 is a `hidden beast` number, since 3 + 2 + 4 + 440 + 217 = 666.

It can be written as a sum of positive squares in only one way, i.e., 214944921 + 109495296 = 14661^2 + 10464^2 .

It is not a de Polignac number, because 324440217 - 2² = 324440213 is a prime.

It is a super-2 number, since 2×324440217² = 210522908814014178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (324440213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18024448 + ... + 18024465.

Almost surely, 2^324440217 is an apocalyptic number.

It is an amenable number.

324440217 is a deficient number, since it is larger than the sum of its proper divisors (144195665).

324440217 is a wasteful number, since it uses less digits than its factorization.

324440217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36048919 (or 36048916 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 324440217 is about 18012.2240992055. The cubic root of 324440217 is about 687.1394681346.

The spelling of 324440217 in words is "three hundred twenty-four million, four hundred forty thousand, two hundred seventeen".