256160 has 24 divisors (see below), whose sum is σ = 605556. Its totient is φ = 102400.

The previous prime is 256147. The next prime is 256163. The reversal of 256160 is 61652.

It can be written as a sum of positive squares in 2 ways, for example, as 234256 + 21904 = 484^2 + 148^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (256163) by changing a digit.

256160 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 3 ways as a sum of consecutive naturals, for example, 641 + ... + 960.

2²⁵⁶¹⁶⁰ is an apocalyptic number.

256160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256160 is an abundant number, since it is smaller than the sum of its proper divisors (349396).

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

256160 is a wasteful number, since it uses less digits than its factorization.

256160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616 (or 1608 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 256160 is about 506.1225148124. The cubic root of 256160 is about 63.5092676659.

The spelling of 256160 in words is "two hundred fifty-six thousand, one hundred sixty".