2855842 has 12 divisors (see below), whose sum is σ = 4708998. Its totient is φ = 1298000.

The previous prime is 2855819. The next prime is 2855843. The reversal of 2855842 is 2485582.

2855842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2405601 + 450241 = 1551^2 + 671^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2855798 and 2855807.

It is not an unprimeable number, because it can be changed into a prime (2855843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5659 + ... + 6142.

2^2855842 is an apocalyptic number.

2855842 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2855842 is a deficient number, since it is larger than the sum of its proper divisors (1853156).

2855842 is a wasteful number, since it uses less digits than its factorization.

2855842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11825 (or 11814 counting only the distinct ones).

The product of its digits is 25600, while the sum is 34.

The square root of 2855842 is about 1689.9236669152. The cubic root of 2855842 is about 141.8768024896.

The spelling of 2855842 in words is "two million, eight hundred fifty-five thousand, eight hundred forty-two".