442404555313 has 16 divisors (see below), whose sum is σ = 516759552000. Its totient is φ = 370850545296.

The previous prime is 442404555293. The next prime is 442404555349. The reversal of 442404555313 is 313555404244.

It is not a de Polignac number, because 442404555313 - 2²¹ = 442402458161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442404559313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87313 + ... + 944686.

It is an arithmetic number, because the mean of its divisors is an integer number (32297472000).

Almost surely, 2^442404555313 is an apocalyptic number.

It is an amenable number.

442404555313 is a deficient number, since it is larger than the sum of its proper divisors (74354996687).

442404555313 is a wasteful number, since it uses less digits than its factorization.

442404555313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033356.

The product of its (nonzero) digits is 576000, while the sum is 40.

Adding to 442404555313 its reverse (313555404244), we get a palindrome (755959959557).

The spelling of 442404555313 in words is "four hundred forty-two billion, four hundred four million, five hundred fifty-five thousand, three hundred thirteen".