4001027256 has 48 divisors (see below), whose sum is σ = 10839497760. Its totient is φ = 1333259520.

The previous prime is 4001027237. The next prime is 4001027269. The reversal of 4001027256 is 6527201004.

4001027256 is a `hidden beast` number, since 400 + 1 + 0 + 2 + 7 + 256 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 298801 + ... + 311903.

It is an arithmetic number, because the mean of its divisors is an integer number (225822870).

Almost surely, 2^4001027256 is an apocalyptic number.

It is an amenable number.

4001027256 is an abundant number, since it is smaller than the sum of its proper divisors (6838470504).

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

4001027256 is a wasteful number, since it uses less digits than its factorization.

4001027256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17356 (or 17349 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 4001027256 is about 63253.6738537771. The cubic root of 4001027256 is about 1587.5369292751.

The spelling of 4001027256 in words is "four billion, one million, twenty-seven thousand, two hundred fifty-six".