842047776 has 144 divisors (see below), whose sum is σ = 2589350400. Its totient is φ = 258660864.

The previous prime is 842047771. The next prime is 842047831. The reversal of 842047776 is 677740248.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (842047771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 200385 + ... + 204543.

It is an arithmetic number, because the mean of its divisors is an integer number (17981600).

Almost surely, 2^842047776 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 842047776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1294675200).

842047776 is an abundant number, since it is smaller than the sum of its proper divisors (1747302624).

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

842047776 is a wasteful number, since it uses less digits than its factorization.

842047776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4231 (or 4220 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 45.

The square root of 842047776 is about 29018.0594802616. The cubic root of 842047776 is about 944.3049024666.

The spelling of 842047776 in words is "eight hundred forty-two million, forty-seven thousand, seven hundred seventy-six".