256762 has 12 divisors (see below), whose sum is σ = 423738. Its totient is φ = 116600.

The previous prime is 256757. The next prime is 256771. The reversal of 256762 is 267652.

It can be written as a sum of positive squares in only one way, i.e., 203401 + 53361 = 451^2 + 231^2 .

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 256762.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 289 + ... + 772.

2²⁵⁶⁷⁶² is an apocalyptic number.

256762 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

256762 is a deficient number, since it is larger than the sum of its proper divisors (166976).

256762 is a wasteful number, since it uses less digits than its factorization.

256762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085 (or 1074 counting only the distinct ones).

The product of its digits is 5040, while the sum is 28.

The square root of 256762 is about 506.7168834764. The cubic root of 256762 is about 63.5589796533.

The spelling of 256762 in words is "two hundred fifty-six thousand, seven hundred sixty-two".