256484776 has 16 divisors (see below), whose sum is σ = 501818400. Its totient is φ = 122666544.

The previous prime is 256484771. The next prime is 256484791. The reversal of 256484776 is 677484652.

256484776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (256484771) 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, 696786 + ... + 697153.

It is an arithmetic number, because the mean of its divisors is an integer number (31363650).

Almost surely, 2^256484776 is an apocalyptic number.

It is an amenable number.

256484776 is a deficient number, since it is larger than the sum of its proper divisors (245333624).

256484776 is a wasteful number, since it uses less digits than its factorization.

256484776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393968 (or 1393964 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 49.

The square root of 256484776 is about 16015.1420849145. The cubic root of 256484776 is about 635.3609669844.

The spelling of 256484776 in words is "two hundred fifty-six million, four hundred eighty-four thousand, seven hundred seventy-six".