420334241 has 2 divisors, whose sum is σ = 420334242. Its totient is φ = 420334240.

The previous prime is 420334237. The next prime is 420334249. The reversal of 420334241 is 142433024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 375390625 + 44943616 = 19375^2 + 6704^2 .

It is a cyclic number.

It is not a de Polignac number, because 420334241 - 2² = 420334237 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (420334249) 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 as a sum of consecutive naturals, namely, 210167120 + 210167121.

It is an arithmetic number, because the mean of its divisors is an integer number (210167121).

Almost surely, 2^420334241 is an apocalyptic number.

It is an amenable number.

420334241 is a deficient number, since it is larger than the sum of its proper divisors (1).

420334241 is an equidigital number, since it uses as much as digits as its factorization.

420334241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 420334241 is about 20502.0545555805. The cubic root of 420334241 is about 749.0858438404.

Adding to 420334241 its reverse (142433024), we get a palindrome (562767265).

The spelling of 420334241 in words is "four hundred twenty million, three hundred thirty-four thousand, two hundred forty-one".