442806855385 has 32 divisors (see below), whose sum is σ = 547128691200. Its totient is φ = 343872418560.

The previous prime is 442806855367. The next prime is 442806855409. The reversal of 442806855385 is 583558608244.

It is not a de Polignac number, because 442806855385 - 2¹³ = 442806847193 is a prime.

It is a super-2 number, since 2×442806855385² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16349755 + ... + 16376815.

It is an arithmetic number, because the mean of its divisors is an integer number (17097771600).

Almost surely, 2^442806855385 is an apocalyptic number.

It is an amenable number.

442806855385 is a deficient number, since it is larger than the sum of its proper divisors (104321835815).

442806855385 is a wasteful number, since it uses less digits than its factorization.

442806855385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27681.

The product of its (nonzero) digits is 36864000, while the sum is 58.

The spelling of 442806855385 in words is "four hundred forty-two billion, eight hundred six million, eight hundred fifty-five thousand, three hundred eighty-five".