2656841 has 16 divisors (see below), whose sum is σ = 3060288. Its totient is φ = 2284800.

The previous prime is 2656831. The next prime is 2656847. The reversal of 2656841 is 1486562.

It is a cyclic number.

It is not a de Polignac number, because 2656841 - 2¹⁰ = 2655817 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2656798 and 2656807.

It is not an unprimeable number, because it can be changed into a prime (2656847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19325 + ... + 19461.

It is an arithmetic number, because the mean of its divisors is an integer number (191268).

2^2656841 is an apocalyptic number.

It is an amenable number.

2656841 is a deficient number, since it is larger than the sum of its proper divisors (403447).

2656841 is a wasteful number, since it uses less digits than its factorization.

2656841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232.

The product of its digits is 11520, while the sum is 32.

The square root of 2656841 is about 1629.9819017400. The cubic root of 2656841 is about 138.5017268353.

The spelling of 2656841 in words is "two million, six hundred fifty-six thousand, eight hundred forty-one".