256078930 has 16 divisors (see below), whose sum is σ = 462165120. Its totient is φ = 102159792.

The previous prime is 256078913. The next prime is 256078943. The reversal of 256078930 is 39870652.

256078930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29994 + ... + 37573.

It is an arithmetic number, because the mean of its divisors is an integer number (28885320).

Almost surely, 2^256078930 is an apocalyptic number.

256078930 is a deficient number, since it is larger than the sum of its proper divisors (206086190).

256078930 is a wasteful number, since it uses less digits than its factorization.

256078930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67953.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 256078930 is about 16002.4663724065. The cubic root of 256078930 is about 635.0256711469.

The spelling of 256078930 in words is "two hundred fifty-six million, seventy-eight thousand, nine hundred thirty".