256329476 has 24 divisors (see below), whose sum is σ = 485604504. Its totient is φ = 117688320.

The previous prime is 256329473. The next prime is 256329497. The reversal of 256329476 is 674923652.

It can be written as a sum of positive squares in 4 ways, for example, as 329476 + 256000000 = 574^2 + 16000^2 .

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (256329473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2735 + ... + 22806.

It is an arithmetic number, because the mean of its divisors is an integer number (20233521).

Almost surely, 2^256329476 is an apocalyptic number.

256329476 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

256329476 is a deficient number, since it is larger than the sum of its proper divisors (229275028).

256329476 is a wasteful number, since it uses less digits than its factorization.

256329476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25751 (or 25749 counting only the distinct ones).

The product of its digits is 544320, while the sum is 44.

The square root of 256329476 is about 16010.2928143117. The cubic root of 256329476 is about 635.2327053368.

It can be divided in two parts, 256 and 329476, that multiplied together give a square (84345856 = 9184²).

The spelling of 256329476 in words is "two hundred fifty-six million, three hundred twenty-nine thousand, four hundred seventy-six".