442500041 has 2 divisors, whose sum is σ = 442500042. Its totient is φ = 442500040.

The previous prime is 442500031. The next prime is 442500061. The reversal of 442500041 is 140005244.

It is an a-pointer prime, because the next prime (442500061) can be obtained adding 442500041 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 288864016 + 153636025 = 16996^2 + 12395^2 .

It is a cyclic number.

It is not a de Polignac number, because 442500041 - 2¹⁰ = 442499017 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 442499986 and 442500022.

It is not a weakly prime, because it can be changed into another prime (442500001) 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 as a sum of consecutive naturals, namely, 221250020 + 221250021.

It is an arithmetic number, because the mean of its divisors is an integer number (221250021).

Almost surely, 2^442500041 is an apocalyptic number.

It is an amenable number.

442500041 is a deficient number, since it is larger than the sum of its proper divisors (1).

442500041 is an equidigital number, since it uses as much as digits as its factorization.

442500041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 442500041 is about 21035.6849424971. The cubic root of 442500041 is about 762.0283083198.

Adding to 442500041 its reverse (140005244), we get a palindrome (582505285).

The spelling of 442500041 in words is "four hundred forty-two million, five hundred thousand, forty-one".