3868256 has 36 divisors (see below), whose sum is σ = 8862588. Its totient is φ = 1657152.

The previous prime is 3868253. The next prime is 3868259. The reversal of 3868256 is 6528683.

It is an interprime number because it is at equal distance from previous prime (3868253) and next prime (3868259).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3868253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 335 + ... + 2801.

It is an arithmetic number, because the mean of its divisors is an integer number (246183).

Almost surely, 2^3868256 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 3868256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4431294).

3868256 is an abundant number, since it is smaller than the sum of its proper divisors (4994332).

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

3868256 is a wasteful number, since it uses less digits than its factorization.

3868256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2491 (or 2476 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 3868256 is about 1966.7882448296. The cubic root of 3868256 is about 156.9778594010.

The spelling of 3868256 in words is "three million, eight hundred sixty-eight thousand, two hundred fifty-six".