2881844 has 24 divisors (see below), whose sum is σ = 6068160. Its totient is φ = 1169856.

The previous prime is 2881799. The next prime is 2881859. The reversal of 2881844 is 4481882.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2177 + ... + 3240.

It is an arithmetic number, because the mean of its divisors is an integer number (252840).

2^2881844 is an apocalyptic number.

It is an amenable number.

2881844 is an abundant number, since it is smaller than the sum of its proper divisors (3186316).

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

2881844 is a wasteful number, since it uses less digits than its factorization.

2881844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5447 (or 5445 counting only the distinct ones).

The product of its digits is 16384, while the sum is 35.

The square root of 2881844 is about 1697.5994816210. The cubic root of 2881844 is about 142.3060910310.

The spelling of 2881844 in words is "two million, eight hundred eighty-one thousand, eight hundred forty-four".