842851340 has 12 divisors (see below), whose sum is σ = 1769987856. Its totient is φ = 337140528.

The previous prime is 842851337. The next prime is 842851367. The reversal of 842851340 is 43158248.

It is a self number, because there is not a number n which added to its sum of digits gives 842851340.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21071264 + ... + 21071303.

It is an arithmetic number, because the mean of its divisors is an integer number (147498988).

Almost surely, 2^842851340 is an apocalyptic number.

It is an amenable number.

842851340 is an abundant number, since it is smaller than the sum of its proper divisors (927136516).

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

842851340 is a wasteful number, since it uses less digits than its factorization.

842851340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42142576 (or 42142574 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 842851340 is about 29031.9021078537. The cubic root of 842851340 is about 944.6051895356.

The spelling of 842851340 in words is "eight hundred forty-two million, eight hundred fifty-one thousand, three hundred forty".