2820044 has 6 divisors (see below), whose sum is σ = 4935084. Its totient is φ = 1410020.

The previous prime is 2820043. The next prime is 2820071. The reversal of 2820044 is 4400282.

2820044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2819998 and 2820025.

It is not an unprimeable number, because it can be changed into a prime (2820043) 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 as a sum of consecutive naturals, namely, 352502 + ... + 352509.

It is an arithmetic number, because the mean of its divisors is an integer number (822514).

2^2820044 is an apocalyptic number.

It is an amenable number.

2820044 is a deficient number, since it is larger than the sum of its proper divisors (2115040).

2820044 is a wasteful number, since it uses less digits than its factorization.

2820044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705015 (or 705013 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 2820044 is about 1679.2986631329. The cubic root of 2820044 is about 141.2814992272.

The spelling of 2820044 in words is "two million, eight hundred twenty thousand, forty-four".