256713476 has 6 divisors (see below), whose sum is σ = 449248590. Its totient is φ = 128356736.

The previous prime is 256713473. The next prime is 256713491. The reversal of 256713476 is 674317652.

256713476 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 231952900 + 24760576 = 15230^2 + 4976^2 .

It is not an unprimeable number, because it can be changed into a prime (256713473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32089181 + ... + 32089188.

It is an arithmetic number, because the mean of its divisors is an integer number (74874765).

Almost surely, 2^256713476 is an apocalyptic number.

It is an amenable number.

256713476 is a deficient number, since it is larger than the sum of its proper divisors (192535114).

256713476 is a wasteful number, since it uses less digits than its factorization.

256713476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64178373 (or 64178371 counting only the distinct ones).

The product of its digits is 211680, while the sum is 41.

The square root of 256713476 is about 16022.2806116982. The cubic root of 256713476 is about 635.5497551692.

The spelling of 256713476 in words is "two hundred fifty-six million, seven hundred thirteen thousand, four hundred seventy-six".