2856041240 has 128 divisors (see below), whose sum is σ = 7312032000. Its totient is φ = 995286528.

The previous prime is 2856041219. The next prime is 2856041267. The reversal of 2856041240 is 421406582.

It is a junction number, because it is equal to n+sod(n) for n = 2856041197 and 2856041206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4613651 + ... + 4614269.

It is an arithmetic number, because the mean of its divisors is an integer number (57125250).

Almost surely, 2^2856041240 is an apocalyptic number.

2856041240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2856041240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3656016000).

2856041240 is an abundant number, since it is smaller than the sum of its proper divisors (4455990760).

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

2856041240 is a wasteful number, since it uses less digits than its factorization.

2856041240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129 (or 1125 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 2856041240 is about 53441.9427042094. The cubic root of 2856041240 is about 1418.8010179407.

The spelling of 2856041240 in words is "two billion, eight hundred fifty-six million, forty-one thousand, two hundred forty".