256941882 has 80 divisors (see below), whose sum is σ = 593078112. Its totient is φ = 83455920.

The previous prime is 256941863. The next prime is 256941887. The reversal of 256941882 is 288149652.

256941882 is a `hidden beast` number, since 2 + 569 + 4 + 1 + 8 + 82 = 666.

It is not an unprimeable number, because it can be changed into a prime (256941887) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2401273 + ... + 2401379.

Almost surely, 2^256941882 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 256941882, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296539056).

256941882 is an abundant number, since it is smaller than the sum of its proper divisors (336136230).

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

256941882 is an frugal number, since it uses more digits than its factorization.

256941882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 173 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 256941882 is about 16029.4067887742. The cubic root of 256941882 is about 635.7381887863.

The spelling of 256941882 in words is "two hundred fifty-six million, nine hundred forty-one thousand, eight hundred eighty-two".