442586335381 has 16 divisors (see below), whose sum is σ = 463222454400. Its totient is φ = 422067824640.

The previous prime is 442586335379. The next prime is 442586335393. The reversal of 442586335381 is 183533685244.

It is a cyclic number.

It is not a de Polignac number, because 442586335381 - 2¹ = 442586335379 is a prime.

It is a super-2 number, since 2×442586335381² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442586335181) 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 in 15 ways as a sum of consecutive naturals, for example, 13625746 + ... + 13658188.

It is an arithmetic number, because the mean of its divisors is an integer number (28951403400).

Almost surely, 2^442586335381 is an apocalyptic number.

It is an amenable number.

442586335381 is a deficient number, since it is larger than the sum of its proper divisors (20636119019).

442586335381 is a wasteful number, since it uses less digits than its factorization.

442586335381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34236.

The product of its digits is 8294400, while the sum is 52.

The spelling of 442586335381 in words is "four hundred forty-two billion, five hundred eighty-six million, three hundred thirty-five thousand, three hundred eighty-one".