256303144 has 16 divisors (see below), whose sum is σ = 493557300. Its totient is φ = 124687872.

The previous prime is 256303129. The next prime is 256303213. The reversal of 256303144 is 441303652.

It can be written as a sum of positive squares in 2 ways, for example, as 229159044 + 27144100 = 15138^2 + 5210^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 432649 + ... + 433240.

Almost surely, 2^256303144 is an apocalyptic number.

It is an amenable number.

256303144 is a deficient number, since it is larger than the sum of its proper divisors (237254156).

256303144 is a wasteful number, since it uses less digits than its factorization.

256303144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865932 (or 865928 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 256303144 is about 16009.4704472072. The cubic root of 256303144 is about 635.2109527072.

Adding to 256303144 its reverse (441303652), we get a palindrome (697606796).

The spelling of 256303144 in words is "two hundred fifty-six million, three hundred three thousand, one hundred forty-four".