256212288 has 112 divisors (see below), whose sum is σ = 764804160. Its totient is φ = 84091392.

The previous prime is 256212277. The next prime is 256212293. The reversal of 256212288 is 882212652.

256212288 is a `hidden beast` number, since 2 + 5 + 621 + 2 + 28 + 8 = 666.

256212288 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 congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114670 + ... + 116882.

Almost surely, 2^256212288 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 256212288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (382402080).

256212288 is an abundant number, since it is smaller than the sum of its proper divisors (508591872).

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

256212288 is a wasteful number, since it uses less digits than its factorization.

256212288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2301 (or 2285 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 256212288 is about 16006.6326252588. The cubic root of 256212288 is about 635.1358859377.

The spelling of 256212288 in words is "two hundred fifty-six million, two hundred twelve thousand, two hundred eighty-eight".