2842840856 has 16 divisors (see below), whose sum is σ = 5353811640. Its totient is φ = 1415157760.

The previous prime is 2842840853. The next prime is 2842840859. The reversal of 2842840856 is 6580482482.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2842840853) and next prime (2842840859).

It is a self number, because there is not a number n which added to its sum of digits gives 2842840856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2842840853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 780905 + ... + 784536.

Almost surely, 2^2842840856 is an apocalyptic number.

It is an amenable number.

2842840856 is a deficient number, since it is larger than the sum of its proper divisors (2510970784).

2842840856 is a wasteful number, since it uses less digits than its factorization.

2842840856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565674 (or 1565670 counting only the distinct ones).

The product of its (nonzero) digits is 983040, while the sum is 47.

The square root of 2842840856 is about 53318.2975722219. The cubic root of 2842840856 is about 1416.6117817229.

The spelling of 2842840856 in words is "two billion, eight hundred forty-two million, eight hundred forty thousand, eight hundred fifty-six".