20324445 has 32 divisors (see below), whose sum is σ = 33619968. Its totient is φ = 10479168.

The previous prime is 20324413. The next prime is 20324453. The reversal of 20324445 is 54442302.

It is not a de Polignac number, because 20324445 - 2⁵ = 20324413 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89422 + ... + 89648.

It is an arithmetic number, because the mean of its divisors is an integer number (1050624).

Almost surely, 2^20324445 is an apocalyptic number.

It is an amenable number.

20324445 is a deficient number, since it is larger than the sum of its proper divisors (13295523).

20324445 is a wasteful number, since it uses less digits than its factorization.

20324445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 20324445 is about 4508.2640783344. The cubic root of 20324445 is about 272.9016941329.

Adding to 20324445 its reverse (54442302), we get a palindrome (74766747).

The spelling of 20324445 in words is "twenty million, three hundred twenty-four thousand, four hundred forty-five".