256026456 has 96 divisors (see below), whose sum is σ = 800785440. Its totient is φ = 72382464.

The previous prime is 256026451. The next prime is 256026457. The reversal of 256026456 is 654620652.

256026456 is a `hidden beast` number, since 2 + 5 + 6 + 0 + 2 + 645 + 6 = 666.

256026456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 256026456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256026451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46270 + ... + 51506.

It is an arithmetic number, because the mean of its divisors is an integer number (8341515).

Almost surely, 2^256026456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 256026456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (400392720).

256026456 is an abundant number, since it is smaller than the sum of its proper divisors (544758984).

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

256026456 is a wasteful number, since it uses less digits than its factorization.

256026456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5353 (or 5346 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 256026456 is about 16000.8267286412. The cubic root of 256026456 is about 634.9822930975.

The spelling of 256026456 in words is "two hundred fifty-six million, twenty-six thousand, four hundred fifty-six".