256034441 has 4 divisors (see below), whose sum is σ = 275729412. Its totient is φ = 236339472.

The previous prime is 256034437. The next prime is 256034447. The reversal of 256034441 is 144430652.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47665216 + 208369225 = 6904^2 + 14435^2 .

It is a cyclic number.

It is not a de Polignac number, because 256034441 - 2² = 256034437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256034447) 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 3 ways as a sum of consecutive naturals, for example, 9847466 + ... + 9847491.

It is an arithmetic number, because the mean of its divisors is an integer number (68932353).

Almost surely, 2^256034441 is an apocalyptic number.

It is an amenable number.

256034441 is a deficient number, since it is larger than the sum of its proper divisors (19694971).

256034441 is a wasteful number, since it uses less digits than its factorization.

256034441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19694970.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 256034441 is about 16001.0762450530. The cubic root of 256034441 is about 634.9888943436.

The spelling of 256034441 in words is "two hundred fifty-six million, thirty-four thousand, four hundred forty-one".