842807216 has 40 divisors (see below), whose sum is σ = 1723148640. Its totient is φ = 398537216.

The previous prime is 842807191. The next prime is 842807237. The reversal of 842807216 is 612708248.

842807216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 842807216.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19886 + ... + 45618.

It is an arithmetic number, because the mean of its divisors is an integer number (43078716).

Almost surely, 2^842807216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 842807216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (861574320).

842807216 is an abundant number, since it is smaller than the sum of its proper divisors (880341424).

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

842807216 is a wasteful number, since it uses less digits than its factorization.

842807216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25853 (or 25847 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 842807216 is about 29031.1421752572. The cubic root of 842807216 is about 944.5887056138.

The spelling of 842807216 in words is "eight hundred forty-two million, eight hundred seven thousand, two hundred sixteen".