2012856 has 16 divisors (see below), whose sum is σ = 5032200. Its totient is φ = 670944.

The previous prime is 2012849. The next prime is 2012893. The reversal of 2012856 is 6582102.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 83869 = 2012856 / (2 + 0 + 1 + 2 + 8 + 5 + 6).

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 3 ways as a sum of consecutive naturals, for example, 41911 + ... + 41958.

2^2012856 is an apocalyptic number.

It is an amenable number.

2012856 is an abundant number, since it is smaller than the sum of its proper divisors (3019344).

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

2012856 is a wasteful number, since it uses less digits than its factorization.

2012856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83878 (or 83874 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 2012856 is about 1418.7515638758. The cubic root of 2012856 is about 126.2614876976.

Adding to 2012856 its reverse (6582102), we get a palindrome (8594958).

It can be divided in two parts, 201 and 2856, that multiplied together give a triangular number (574056 = T₁₀₇₁).

The spelling of 2012856 in words is "two million, twelve thousand, eight hundred fifty-six".