2656812 has 12 divisors (see below), whose sum is σ = 6199256. Its totient is φ = 885600.

The previous prime is 2656807. The next prime is 2656813. The reversal of 2656812 is 2186562.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 2656812.

It is not an unprimeable number, because it can be changed into a prime (2656813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110689 + ... + 110712.

2^2656812 is an apocalyptic number.

It is an amenable number.

2656812 is an abundant number, since it is smaller than the sum of its proper divisors (3542444).

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

2656812 is a wasteful number, since it uses less digits than its factorization.

2656812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221408 (or 221406 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 2656812 is about 1629.9730059114. The cubic root of 2656812 is about 138.5012229080.

The spelling of 2656812 in words is "two million, six hundred fifty-six thousand, eight hundred twelve".