20330041 has 4 divisors (see below), whose sum is σ = 20435572. Its totient is φ = 20224512.

The previous prime is 20329993. The next prime is 20330047. The reversal of 20330041 is 14003302.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14100025 + 6230016 = 3755^2 + 2496^2 .

It is a cyclic number.

It is not a de Polignac number, because 20330041 - 2¹⁵ = 20297273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20330047) 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 3 ways as a sum of consecutive naturals, for example, 52476 + ... + 52861.

It is an arithmetic number, because the mean of its divisors is an integer number (5108893).

Almost surely, 2^20330041 is an apocalyptic number.

It is an amenable number.

20330041 is a deficient number, since it is larger than the sum of its proper divisors (105531).

20330041 is a wasteful number, since it uses less digits than its factorization.

20330041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105530.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 20330041 is about 4508.8846736194. The cubic root of 20330041 is about 272.9267381582.

Adding to 20330041 its reverse (14003302), we get a palindrome (34333343).

The spelling of 20330041 in words is "twenty million, three hundred thirty thousand, forty-one".