2806045 has 16 divisors (see below), whose sum is σ = 3707712. Its totient is φ = 2021760.

The previous prime is 2806031. The next prime is 2806049. The reversal of 2806045 is 5406082.

2806045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2806045 - 2⁹ = 2805533 is a prime.

It is a Duffinian number.

2806045 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2806049) 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 15 ways as a sum of consecutive naturals, for example, 8809 + ... + 9121.

It is an arithmetic number, because the mean of its divisors is an integer number (231732).

2^2806045 is an apocalyptic number.

It is an amenable number.

2806045 is a deficient number, since it is larger than the sum of its proper divisors (901667).

2806045 is a wasteful number, since it uses less digits than its factorization.

2806045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 2806045 is about 1675.1253684426. The cubic root of 2806045 is about 141.0473324987.

The spelling of 2806045 in words is "two million, eight hundred six thousand, forty-five".