442806855384 has 64 divisors (see below), whose sum is σ = 1128029068800. Its totient is φ = 144801311616.

The previous prime is 442806855367. The next prime is 442806855409. The reversal of 442806855384 is 483558608244.

It is a super-2 number, since 2×442806855384² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 18405267 + ... + 18429309.

It is an arithmetic number, because the mean of its divisors is an integer number (17625454200).

Almost surely, 2^442806855384 is an apocalyptic number.

It is an amenable number.

442806855384 is an abundant number, since it is smaller than the sum of its proper divisors (685222213416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442806855384 is a wasteful number, since it uses less digits than its factorization.

442806855384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38584 (or 38580 counting only the distinct ones).

The product of its (nonzero) digits is 29491200, while the sum is 57.

The spelling of 442806855384 in words is "four hundred forty-two billion, eight hundred six million, eight hundred fifty-five thousand, three hundred eighty-four".