324221413 has 4 divisors (see below), whose sum is σ = 327431628. Its totient is φ = 321011200.

The previous prime is 324221407. The next prime is 324221437. The reversal of 324221413 is 314122423.

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 248913729 + 75307684 = 15777^2 + 8678^2 .

It is a cyclic number.

It is not a de Polignac number, because 324221413 - 2⁹ = 324220901 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 (324221473) 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, 1604956 + ... + 1605157.

It is an arithmetic number, because the mean of its divisors is an integer number (81857907).

Almost surely, 2^324221413 is an apocalyptic number.

It is an amenable number.

324221413 is a deficient number, since it is larger than the sum of its proper divisors (3210215).

324221413 is a wasteful number, since it uses less digits than its factorization.

324221413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3210214.

The product of its digits is 1152, while the sum is 22.

The square root of 324221413 is about 18006.1493107216. The cubic root of 324221413 is about 686.9849633726.

Adding to 324221413 its reverse (314122423), we get a palindrome (638343836).

The spelling of 324221413 in words is "three hundred twenty-four million, two hundred twenty-one thousand, four hundred thirteen".