442828241 has 2 divisors, whose sum is σ = 442828242. Its totient is φ = 442828240.

The previous prime is 442828237. The next prime is 442828261. The reversal of 442828241 is 142828244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 331968400 + 110859841 = 18220^2 + 10529^2 .

It is a cyclic number.

It is not a de Polignac number, because 442828241 - 2² = 442828237 is a prime.

It is not a weakly prime, because it can be changed into another prime (442828261) 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, 221414120 + 221414121.

It is an arithmetic number, because the mean of its divisors is an integer number (221414121).

Almost surely, 2^442828241 is an apocalyptic number.

It is an amenable number.

442828241 is a deficient number, since it is larger than the sum of its proper divisors (1).

442828241 is an equidigital number, since it uses as much as digits as its factorization.

442828241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32768, while the sum is 35.

The square root of 442828241 is about 21043.4845260950. The cubic root of 442828241 is about 762.2166592509.

The spelling of 442828241 in words is "four hundred forty-two million, eight hundred twenty-eight thousand, two hundred forty-one".