442116918 has 12 divisors (see below), whose sum is σ = 957920028. Its totient is φ = 147372300.

The previous prime is 442116911. The next prime is 442116931. The reversal of 442116918 is 819611244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442116911) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12281008 + ... + 12281043.

It is an arithmetic number, because the mean of its divisors is an integer number (79826669).

Almost surely, 2^442116918 is an apocalyptic number.

442116918 is an abundant number, since it is smaller than the sum of its proper divisors (515803110).

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

442116918 is a wasteful number, since it uses less digits than its factorization.

442116918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24562059 (or 24562056 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 442116918 is about 21026.5764688406. The cubic root of 442116918 is about 761.8083197372.

The spelling of 442116918 in words is "four hundred forty-two million, one hundred sixteen thousand, nine hundred eighteen".