256231694 has 8 divisors (see below), whose sum is σ = 384668040. Its totient is φ = 128009016.

The previous prime is 256231649. The next prime is 256231699. The reversal of 256231694 is 496132652.

256231694 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256231699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50384 + ... + 55235.

It is an arithmetic number, because the mean of its divisors is an integer number (48083505).

Almost surely, 2^256231694 is an apocalyptic number.

256231694 is a deficient number, since it is larger than the sum of its proper divisors (128436346).

256231694 is a wasteful number, since it uses less digits than its factorization.

256231694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106834.

The product of its digits is 77760, while the sum is 38.

The square root of 256231694 is about 16007.2387999930. The cubic root of 256231694 is about 635.1519209946.

The spelling of 256231694 in words is "two hundred fifty-six million, two hundred thirty-one thousand, six hundred ninety-four".