999916842 has 32 divisors (see below), whose sum is σ = 2076770304. Its totient is φ = 320612400.

The previous prime is 999916807. The next prime is 999916859. The reversal of 999916842 is 248619999.

999916842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14967 + ... + 47157.

It is an arithmetic number, because the mean of its divisors is an integer number (64899072).

Almost surely, 2^999916842 is an apocalyptic number.

999916842 is an abundant number, since it is smaller than the sum of its proper divisors (1076853462).

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

999916842 is a wasteful number, since it uses less digits than its factorization.

999916842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32394.

The product of its digits is 2519424, while the sum is 57.

The square root of 999916842 is about 31621.4617309194. The cubic root of 999916842 is about 999.9722798983.

The spelling of 999916842 in words is "nine hundred ninety-nine million, nine hundred sixteen thousand, eight hundred forty-two".