324133220 has 24 divisors (see below), whose sum is σ = 720720504. Its totient is φ = 122026496.

The previous prime is 324133211. The next prime is 324133223. The reversal of 324133220 is 22331423.

It can be written as a sum of positive squares in 4 ways, for example, as 131423296 + 192709924 = 11464^2 + 13882^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 324133192 and 324133201.

It is not an unprimeable number, because it can be changed into a prime (324133223) 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 7 ways as a sum of consecutive naturals, for example, 476327 + ... + 477006.

It is an arithmetic number, because the mean of its divisors is an integer number (30030021).

Almost surely, 2^324133220 is an apocalyptic number.

It is an amenable number.

324133220 is an abundant number, since it is smaller than the sum of its proper divisors (396587284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

324133220 is a wasteful number, since it uses less digits than its factorization.

324133220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953359 (or 953357 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 324133220 is about 18003.7001752418. The cubic root of 324133220 is about 686.9226677141.

Adding to 324133220 its reverse (22331423), we get a palindrome (346464643).

The spelling of 324133220 in words is "three hundred twenty-four million, one hundred thirty-three thousand, two hundred twenty".