256411478 has 32 divisors (see below), whose sum is σ = 405979392. Its totient is φ = 121305600.

The previous prime is 256411471. The next prime is 256411489. The reversal of 256411478 is 874114652.

256411478 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 not an unprimeable number, because it can be changed into a prime (256411471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 819050 + ... + 819362.

It is an arithmetic number, because the mean of its divisors is an integer number (12686856).

Almost surely, 2^256411478 is an apocalyptic number.

256411478 is a deficient number, since it is larger than the sum of its proper divisors (149567914).

256411478 is a wasteful number, since it uses less digits than its factorization.

256411478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600.

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

The square root of 256411478 is about 16012.8535245908. The cubic root of 256411478 is about 635.3004369133.

The spelling of 256411478 in words is "two hundred fifty-six million, four hundred eleven thousand, four hundred seventy-eight".