256330244 has 12 divisors (see below), whose sum is σ = 449851164. Its totient is φ = 127801344.

The previous prime is 256330231. The next prime is 256330247. The reversal of 256330244 is 442033652.

It can be written as a sum of positive squares in 2 ways, for example, as 128368900 + 127961344 = 11330^2 + 11312^2 .

It is not an unprimeable number, because it can be changed into a prime (256330247) 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, 89357 + ... + 92180.

It is an arithmetic number, because the mean of its divisors is an integer number (37487597).

Almost surely, 2^256330244 is an apocalyptic number.

It is an amenable number.

256330244 is a deficient number, since it is larger than the sum of its proper divisors (193520920).

256330244 is a wasteful number, since it uses less digits than its factorization.

256330244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181894 (or 181892 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 256330244 is about 16010.3167988644. The cubic root of 256330244 is about 635.2333397523.

Adding to 256330244 its reverse (442033652), we get a palindrome (698363896).

The spelling of 256330244 in words is "two hundred fifty-six million, three hundred thirty thousand, two hundred forty-four".