20324223 has 16 divisors (see below), whose sum is σ = 30240000. Its totient is φ = 13491000.

The previous prime is 20324221. The next prime is 20324237. The reversal of 20324223 is 32242302.

It is not a de Polignac number, because 20324223 - 2¹ = 20324221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20324196 and 20324205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20324221) 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 15 ways as a sum of consecutive naturals, for example, 5278 + ... + 8276.

It is an arithmetic number, because the mean of its divisors is an integer number (1890000).

Almost surely, 2^20324223 is an apocalyptic number.

20324223 is a deficient number, since it is larger than the sum of its proper divisors (9915777).

20324223 is a wasteful number, since it uses less digits than its factorization.

20324223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3259 (or 3253 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 20324223 is about 4508.2394568168. The cubic root of 20324223 is about 272.9007005118.

Adding to 20324223 its reverse (32242302), we get a palindrome (52566525).

The spelling of 20324223 in words is "twenty million, three hundred twenty-four thousand, two hundred twenty-three".