442938308017 has 4 divisors (see below), whose sum is σ = 442939718260. Its totient is φ = 442936897776.

The previous prime is 442938307997. The next prime is 442938308023. The reversal of 442938308017 is 710803839244.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 145808658801 + 297129649216 = 381849^2 + 545096^2 .

It is a cyclic number.

It is not a de Polignac number, because 442938308017 - 2¹⁵ = 442938275249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442938308077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3163 + ... + 941215.

It is an arithmetic number, because the mean of its divisors is an integer number (110734929565).

Almost surely, 2^442938308017 is an apocalyptic number.

It is an amenable number.

442938308017 is a deficient number, since it is larger than the sum of its proper divisors (1410243).

442938308017 is an equidigital number, since it uses as much as digits as its factorization.

442938308017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410242.

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 442938308017 in words is "four hundred forty-two billion, nine hundred thirty-eight million, three hundred eight thousand, seventeen".