20324339 has 4 divisors (see below), whose sum is σ = 23227824. Its totient is φ = 17420856.

The previous prime is 20324327. The next prime is 20324363. The reversal of 20324339 is 93342302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20324339 - 2⁴ = 20324323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20324399) 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, 1451732 + ... + 1451745.

It is an arithmetic number, because the mean of its divisors is an integer number (5806956).

Almost surely, 2^20324339 is an apocalyptic number.

20324339 is a deficient number, since it is larger than the sum of its proper divisors (2903485).

20324339 is an equidigital number, since it uses as much as digits as its factorization.

20324339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2903484.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 20324339 is about 4508.2523221310. The cubic root of 20324339 is about 272.9012197021.

It can be divided in two parts, 203 and 24339, that added together give a palindrome (24542).

The spelling of 20324339 in words is "twenty million, three hundred twenty-four thousand, three hundred thirty-nine".