2840115256 has 64 divisors (see below), whose sum is σ = 6203070720. Its totient is φ = 1206078720.

The previous prime is 2840115211. The next prime is 2840115259. The reversal of 2840115256 is 6525110482.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2840115259) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 70716 + ... + 103348.

It is an arithmetic number, because the mean of its divisors is an integer number (96922980).

Almost surely, 2^2840115256 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 2840115256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3101535360).

2840115256 is an abundant number, since it is smaller than the sum of its proper divisors (3362955464).

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

2840115256 is a wasteful number, since it uses less digits than its factorization.

2840115256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32716 (or 32712 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 2840115256 is about 53292.7317370765. The cubic root of 2840115256 is about 1416.1589070709.

The spelling of 2840115256 in words is "two billion, eight hundred forty million, one hundred fifteen thousand, two hundred fifty-six".