386256 has 40 divisors (see below), whose sum is σ = 1076320. Its totient is φ = 118656.

The previous prime is 386249. The next prime is 386263. The reversal of 386256 is 652683.

It is an interprime number because it is at equal distance from previous prime (386249) and next prime (386263).

It is a zygodrome in base 5.

It is a congruent number.

It is an unprimeable number.

386256 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315 + ... + 933.

It is an arithmetic number, because the mean of its divisors is an integer number (26908).

2³⁸⁶²⁵⁶ 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 386256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (538160).

386256 is an abundant number, since it is smaller than the sum of its proper divisors (690064).

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

386256 is a wasteful number, since it uses less digits than its factorization.

386256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643 (or 637 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 386256 is about 621.4949718220. The cubic root of 386256 is about 72.8268869813.

The spelling of 386256 in words is "three hundred eighty-six thousand, two hundred fifty-six".