2805842 has 16 divisors (see below), whose sum is σ = 4560192. Its totient is φ = 1287120.

The previous prime is 2805827. The next prime is 2805851. The reversal of 2805842 is 2485082.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7913 + ... + 8259.

It is an arithmetic number, because the mean of its divisors is an integer number (285012).

2^2805842 is an apocalyptic number.

2805842 is a deficient number, since it is larger than the sum of its proper divisors (1754350).

2805842 is a wasteful number, since it uses less digits than its factorization.

2805842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673.

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 2805842 is about 1675.0647748669. The cubic root of 2805842 is about 141.0439311160.

The spelling of 2805842 in words is "two million, eight hundred five thousand, eight hundred forty-two".