20324605 has 16 divisors (see below), whose sum is σ = 29514240. Its totient is φ = 13116672.

The previous prime is 20324573. The next prime is 20324609. The reversal of 20324605 is 50642302.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20324605 - 2⁵ = 20324573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20324609) 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 15 ways as a sum of consecutive naturals, for example, 16485 + ... + 17674.

It is an arithmetic number, because the mean of its divisors is an integer number (1844640).

Almost surely, 2^20324605 is an apocalyptic number.

It is an amenable number.

20324605 is a deficient number, since it is larger than the sum of its proper divisors (9189635).

20324605 is a wasteful number, since it uses less digits than its factorization.

20324605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34188.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 20324605 is about 4508.2818234889. The cubic root of 20324605 is about 272.9024102518.

Adding to 20324605 its reverse (50642302), we get a palindrome (70966907).

The spelling of 20324605 in words is "twenty million, three hundred twenty-four thousand, six hundred five".