2684256 has 24 divisors (see below), whose sum is σ = 7046424. Its totient is φ = 894720.

The previous prime is 2684237. The next prime is 2684257. The reversal of 2684256 is 6524862.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2684257) 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, 13885 + ... + 14076.

It is an arithmetic number, because the mean of its divisors is an integer number (293601).

2^2684256 is an apocalyptic number.

It is an amenable number.

2684256 is an abundant number, since it is smaller than the sum of its proper divisors (4362168).

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

2684256 is a wasteful number, since it uses less digits than its factorization.

2684256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27974 (or 27966 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 2684256 is about 1638.3699215989. The cubic root of 2684256 is about 138.9764810198.

Subtracting 2684256 from its reverse (6524862), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 2684256 in words is "two million, six hundred eighty-four thousand, two hundred fifty-six".