20042041 has 2 divisors, whose sum is σ = 20042042. Its totient is φ = 20042040.

The previous prime is 20041981. The next prime is 20042047. The reversal of 20042041 is 14024002.

20042041 is nontrivially palindromic in base 15.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12752041 + 7290000 = 3571^2 + 2700^2 .

It is a cyclic number.

It is not a de Polignac number, because 20042041 - 2¹¹ = 20039993 is a prime.

It is not a weakly prime, because it can be changed into another prime (20042047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10021020 + 10021021.

It is an arithmetic number, because the mean of its divisors is an integer number (10021021).

Almost surely, 2^20042041 is an apocalyptic number.

It is an amenable number.

20042041 is a deficient number, since it is larger than the sum of its proper divisors (1).

20042041 is an equidigital number, since it uses as much as digits as its factorization.

20042041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 20042041 is about 4476.8338142040. The cubic root of 20042041 is about 271.6318232670.

Adding to 20042041 its reverse (14024002), we get a palindrome (34066043).

The spelling of 20042041 in words is "twenty million, forty-two thousand, forty-one".