256970 has 16 divisors (see below), whose sum is σ = 528768. Its totient is φ = 88080.

The previous prime is 256967. The next prime is 256981. The reversal of 256970 is 79652.

256970 is nontrivially palindromic in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 256970.

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, 1766 + ... + 1905.

It is an arithmetic number, because the mean of its divisors is an integer number (33048).

2²⁵⁶⁹⁷⁰ is an apocalyptic number.

256970 is an abundant number, since it is smaller than the sum of its proper divisors (271798).

It is a weird number, because it is abundant, but not a pseudoperfect number.

256970 is a wasteful number, since it uses less digits than its factorization.

256970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3685.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 256970 is about 506.9220847428. The cubic root of 256970 is about 63.5761378251.

The spelling of 256970 in words is "two hundred fifty-six thousand, nine hundred seventy".