324324021 has 8 divisors (see below), whose sum is σ = 494208064. Its totient is φ = 185328000.

The previous prime is 324323983. The next prime is 324324041. The reversal of 324324021 is 120423423.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 324324021 - 2⁷ = 324323893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 15444001 = 324324021 / (3 + 2 + 4 + 3 + 2 + 4 + 0 + 2 + 1).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (324324041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7721980 + ... + 7722021.

It is an arithmetic number, because the mean of its divisors is an integer number (61776008).

Almost surely, 2^324324021 is an apocalyptic number.

It is an amenable number.

324324021 is a deficient number, since it is larger than the sum of its proper divisors (169884043).

324324021 is a wasteful number, since it uses less digits than its factorization.

324324021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15444011.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 324324021 is about 18008.9983341662. The cubic root of 324324021 is about 687.0574269376.

Adding to 324324021 its reverse (120423423), we get a palindrome (444747444).

The spelling of 324324021 in words is "three hundred twenty-four million, three hundred twenty-four thousand, twenty-one".