442686843830 has 128 divisors (see below), whose sum is σ = 1049162526720. Its totient is φ = 130291079040.

The previous prime is 442686843821. The next prime is 442686843889. The reversal of 442686843830 is 38348686244.

It is a Curzon number.

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 63 ways as a sum of consecutive naturals, for example, 4442129 + ... + 4540691.

It is an arithmetic number, because the mean of its divisors is an integer number (8196582240).

Almost surely, 2^442686843830 is an apocalyptic number.

442686843830 is an abundant number, since it is smaller than the sum of its proper divisors (606475682890).

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

442686843830 is a wasteful number, since it uses less digits than its factorization.

442686843830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98914.

The product of its (nonzero) digits is 21233664, while the sum is 56.

The spelling of 442686843830 in words is "four hundred forty-two billion, six hundred eighty-six million, eight hundred forty-three thousand, eight hundred thirty".