2012864 has 28 divisors (see below), whose sum is σ = 4565904. Its totient is φ = 862464.

The previous prime is 2012849. The next prime is 2012893. The reversal of 2012864 is 4682102.

It is a tau number, because it is divible by the number of its divisors (28).

It is a nialpdrome in base 8.

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, 1799 + ... + 2694.

It is an arithmetic number, because the mean of its divisors is an integer number (163068).

2^2012864 is an apocalyptic number.

It is an amenable number.

2012864 is an abundant number, since it is smaller than the sum of its proper divisors (2553040).

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

2012864 is an equidigital number, since it uses as much as digits as its factorization.

2012864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4512 (or 4502 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 2012864 is about 1418.7543832531. The cubic root of 2012864 is about 126.2616549708.

Adding to 2012864 its reverse (4682102), we get a palindrome (6694966).

The spelling of 2012864 in words is "two million, twelve thousand, eight hundred sixty-four".