2851842 has 16 divisors (see below), whose sum is σ = 6518592. Its totient is φ = 814800.

The previous prime is 2851841. The next prime is 2851847. The reversal of 2851842 is 2481582.

It is not an unprimeable number, because it can be changed into a prime (2851841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33909 + ... + 33992.

It is an arithmetic number, because the mean of its divisors is an integer number (407412).

2^2851842 is an apocalyptic number.

2851842 is an abundant number, since it is smaller than the sum of its proper divisors (3666750).

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

2851842 is a wasteful number, since it uses less digits than its factorization.

2851842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67913.

The product of its digits is 5120, while the sum is 30.

The square root of 2851842 is about 1688.7397668084. The cubic root of 2851842 is about 141.8105322065.

The spelling of 2851842 in words is "two million, eight hundred fifty-one thousand, eight hundred forty-two".