442412303 has 2 divisors, whose sum is σ = 442412304. Its totient is φ = 442412302.

The previous prime is 442412237. The next prime is 442412329. The reversal of 442412303 is 303214244.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 442412303 - 2¹² = 442408207 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442412203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221206151 + 221206152.

It is an arithmetic number, because the mean of its divisors is an integer number (221206152).

Almost surely, 2^442412303 is an apocalyptic number.

442412303 is a deficient number, since it is larger than the sum of its proper divisors (1).

442412303 is an equidigital number, since it uses as much as digits as its factorization.

442412303 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 442412303 is about 21033.5993828921. The cubic root of 442412303 is about 761.9779405210.

Adding to 442412303 its reverse (303214244), we get a palindrome (745626547).

The spelling of 442412303 in words is "four hundred forty-two million, four hundred twelve thousand, three hundred three".