256228448 has 36 divisors (see below), whose sum is σ = 586812492. Its totient is φ = 109811520.

The previous prime is 256228439. The next prime is 256228459. The reversal of 256228448 is 844822652.

256228448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80138 + ... + 83273.

It is an arithmetic number, because the mean of its divisors is an integer number (16300347).

Almost surely, 2^256228448 is an apocalyptic number.

256228448 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

256228448 is an abundant number, since it is smaller than the sum of its proper divisors (330584044).

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

256228448 is a wasteful number, since it uses less digits than its factorization.

256228448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163435 (or 163420 counting only the distinct ones).

The product of its digits is 245760, while the sum is 41.

The square root of 256228448 is about 16007.1374080440. The cubic root of 256228448 is about 635.1492389014.

The spelling of 256228448 in words is "two hundred fifty-six million, two hundred twenty-eight thousand, four hundred forty-eight".