442444021333 has 2 divisors, whose sum is σ = 442444021334. Its totient is φ = 442444021332.

The previous prime is 442444021309. The next prime is 442444021343. The reversal of 442444021333 is 333120444244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 237829831684 + 204614189649 = 487678^2 + 452343^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442444021333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442444021343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221222010666 + 221222010667.

It is an arithmetic number, because the mean of its divisors is an integer number (221222010667).

Almost surely, 2^442444021333 is an apocalyptic number.

It is an amenable number.

442444021333 is a deficient number, since it is larger than the sum of its proper divisors (1).

442444021333 is an equidigital number, since it uses as much as digits as its factorization.

442444021333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 442444021333 its reverse (333120444244), we get a palindrome (775564465577).

The spelling of 442444021333 in words is "four hundred forty-two billion, four hundred forty-four million, twenty-one thousand, three hundred thirty-three".