20324109 has 12 divisors (see below), whose sum is σ = 29344416. Its totient is φ = 12506832.

The previous prime is 20324089. The next prime is 20324113. The reversal of 20324109 is 90142302.

It is not a de Polignac number, because 20324109 - 2⁵ = 20324077 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20324159) 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 11 ways as a sum of consecutive naturals, for example, 19537 + ... + 20550.

It is an arithmetic number, because the mean of its divisors is an integer number (2445368).

Almost surely, 2^20324109 is an apocalyptic number.

It is an amenable number.

20324109 is a deficient number, since it is larger than the sum of its proper divisors (9020307).

20324109 is a wasteful number, since it uses less digits than its factorization.

20324109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40116 (or 40103 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 20324109 is about 4508.2268132826. The cubic root of 20324109 is about 272.9001902710.

The spelling of 20324109 in words is "twenty million, three hundred twenty-four thousand, one hundred nine".