2820056 has 16 divisors (see below), whose sum is σ = 5566200. Its totient is φ = 1335744.

The previous prime is 2820043. The next prime is 2820071. The reversal of 2820056 is 6500282.

It is a happy number.

2820056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 9125 + ... + 9428.

2^2820056 is an apocalyptic number.

It is an amenable number.

2820056 is a deficient number, since it is larger than the sum of its proper divisors (2746144).

2820056 is a wasteful number, since it uses less digits than its factorization.

2820056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18578 (or 18574 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2820056 is about 1679.3022360492. The cubic root of 2820056 is about 141.2816996230.

The spelling of 2820056 in words is "two million, eight hundred twenty thousand, fifty-six".