256278282 has 48 divisors (see below), whose sum is σ = 577119648. Its totient is φ = 75414240.

The previous prime is 256278227. The next prime is 256278299. The reversal of 256278282 is 282872652.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38157 + ... + 44367.

It is an arithmetic number, because the mean of its divisors is an integer number (12023326).

Almost surely, 2^256278282 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 256278282, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288559824).

256278282 is an abundant number, since it is smaller than the sum of its proper divisors (320841366).

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

256278282 is a wasteful number, since it uses less digits than its factorization.

256278282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6275 (or 6252 counting only the distinct ones).

The product of its digits is 215040, while the sum is 42.

The square root of 256278282 is about 16008.6939504758. The cubic root of 256278282 is about 635.1904130640.

The spelling of 256278282 in words is "two hundred fifty-six million, two hundred seventy-eight thousand, two hundred eighty-two".