256303994 has 16 divisors (see below), whose sum is σ = 394440288. Its totient is φ = 124839792.

The previous prime is 256303991. The next prime is 256304003. The reversal of 256303994 is 499303652.

It is not an unprimeable number, because it can be changed into a prime (256303991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30389 + ... + 37895.

It is an arithmetic number, because the mean of its divisors is an integer number (24652518).

Almost surely, 2^256303994 is an apocalyptic number.

256303994 is a deficient number, since it is larger than the sum of its proper divisors (138136294).

256303994 is a wasteful number, since it uses less digits than its factorization.

256303994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7949.

The product of its (nonzero) digits is 174960, while the sum is 41.

The square root of 256303994 is about 16009.4969939720. The cubic root of 256303994 is about 635.2116549079.

The spelling of 256303994 in words is "two hundred fifty-six million, three hundred three thousand, nine hundred ninety-four".