442404241313 has 6 divisors (see below), whose sum is σ = 446827860342. Its totient is φ = 438023991200.

The previous prime is 442404241247. The next prime is 442404241333. The reversal of 442404241313 is 313142404244.

It can be written as a sum of positive squares in 3 ways, for example, as 209354747809 + 233049493504 = 457553^2 + 482752^2 .

It is not a de Polignac number, because 442404241313 - 2²⁴ = 442387464097 is a prime.

It is a super-2 number, since 2×442404241313² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 442404241313.

It is not an unprimeable number, because it can be changed into a prime (442404241333) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21674156 + ... + 21694557.

It is an arithmetic number, because the mean of its divisors is an integer number (74471310057).

Almost surely, 2^442404241313 is an apocalyptic number.

It is an amenable number.

442404241313 is a deficient number, since it is larger than the sum of its proper divisors (4423619029).

442404241313 is an equidigital number, since it uses as much as digits as its factorization.

442404241313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43368915 (or 43368814 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 442404241313 its reverse (313142404244), we get a palindrome (755546645557).

The spelling of 442404241313 in words is "four hundred forty-two billion, four hundred four million, two hundred forty-one thousand, three hundred thirteen".