842041 has 2 divisors, whose sum is σ = 842042. Its totient is φ = 842040.

The previous prime is 842021. The next prime is 842047. The reversal of 842041 is 140248.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 810000 + 32041 = 900^2 + 179^2 .

It is a cyclic number.

It is not a de Polignac number, because 842041 - 2⁷ = 841913 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (842047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421020 + 421021.

It is an arithmetic number, because the mean of its divisors is an integer number (421021).

2⁸⁴²⁰⁴¹ is an apocalyptic number.

It is an amenable number.

842041 is a deficient number, since it is larger than the sum of its proper divisors (1).

842041 is an equidigital number, since it uses as much as digits as its factorization.

842041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 842041 is about 917.6279202378. The cubic root of 842041 is about 94.4302369504.

Adding to 842041 its reverse (140248), we get a palindrome (982289).

The spelling of 842041 in words is "eight hundred forty-two thousand, forty-one".