2681256 has 32 divisors (see below), whose sum is σ = 6848640. Its totient is φ = 874368.

The previous prime is 2681249. The next prime is 2681267. The reversal of 2681256 is 6521862.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61 + ... + 2316.

It is an arithmetic number, because the mean of its divisors is an integer number (214020).

2^2681256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2681256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3424320).

2681256 is an abundant number, since it is smaller than the sum of its proper divisors (4167384).

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

2681256 is a wasteful number, since it uses less digits than its factorization.

2681256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2433 (or 2429 counting only the distinct ones).

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

The square root of 2681256 is about 1637.4541214947. The cubic root of 2681256 is about 138.9246870449.

Subtracting 2681256 from its reverse (6521862), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 2681256 in words is "two million, six hundred eighty-one thousand, two hundred fifty-six".