324640213 has 4 divisors (see below), whose sum is σ = 341726560. Its totient is φ = 307553868.

The previous prime is 324640201. The next prime is 324640291. The reversal of 324640213 is 312046423.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 324640213 - 2²¹ = 322543061 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 (324640013) 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, 8543145 + ... + 8543182.

It is an arithmetic number, because the mean of its divisors is an integer number (85431640).

Almost surely, 2^324640213 is an apocalyptic number.

It is an amenable number.

324640213 is a deficient number, since it is larger than the sum of its proper divisors (17086347).

324640213 is a wasteful number, since it uses less digits than its factorization.

324640213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17086346.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 324640213 is about 18017.7749181191. The cubic root of 324640213 is about 687.2806311899.

Adding to 324640213 its reverse (312046423), we get a palindrome (636686636).

The spelling of 324640213 in words is "three hundred twenty-four million, six hundred forty thousand, two hundred thirteen".