256078028 has 6 divisors (see below), whose sum is σ = 448136556. Its totient is φ = 128039012.

The previous prime is 256078027. The next prime is 256078037. The reversal of 256078028 is 820870652.

256078028 is digitally balanced in base 2, base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

256078028 is strictly pandigital in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 256077982 and 256078000.

It is not an unprimeable number, because it can be changed into a prime (256078027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32009750 + ... + 32009757.

It is an arithmetic number, because the mean of its divisors is an integer number (74689426).

Almost surely, 2^256078028 is an apocalyptic number.

It is an amenable number.

256078028 is a deficient number, since it is larger than the sum of its proper divisors (192058528).

256078028 is a wasteful number, since it uses less digits than its factorization.

256078028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64019511 (or 64019509 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 256078028 is about 16002.4381892260. The cubic root of 256078028 is about 635.0249255514.

The spelling of 256078028 in words is "two hundred fifty-six million, seventy-eight thousand, twenty-eight".