20002241 has 6 divisors (see below), whose sum is σ = 23267970. Its totient is φ = 17144736.

The previous prime is 20002201. The next prime is 20002261. The reversal of 20002241 is 14220002.

It can be written as a sum of positive squares in only one way, i.e., 14984641 + 5017600 = 3871^2 + 2240^2 .

It is not a de Polignac number, because 20002241 - 2¹⁰ = 20001217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20002201) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 204056 + ... + 204153.

It is an arithmetic number, because the mean of its divisors is an integer number (3877995).

Almost surely, 2^20002241 is an apocalyptic number.

It is an amenable number.

20002241 is a deficient number, since it is larger than the sum of its proper divisors (3265729).

20002241 is an equidigital number, since it uses as much as digits as its factorization.

20002241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408223 (or 408216 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 20002241 is about 4472.3864993983. The cubic root of 20002241 is about 271.4518996306.

Adding to 20002241 its reverse (14220002), we get a palindrome (34222243).

The spelling of 20002241 in words is "twenty million, two thousand, two hundred forty-one".