256417241 has 8 divisors (see below), whose sum is σ = 260633664. Its totient is φ = 252212400.

The previous prime is 256417237. The next prime is 256417253. The reversal of 256417241 is 142714652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 256417241 - 2² = 256417237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 256417198 and 256417207.

It is not an unprimeable number, because it can be changed into a prime (256417201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49316 + ... + 54266.

It is an arithmetic number, because the mean of its divisors is an integer number (32579208).

Almost surely, 2^256417241 is an apocalyptic number.

It is an amenable number.

256417241 is a deficient number, since it is larger than the sum of its proper divisors (4216423).

256417241 is an equidigital number, since it uses as much as digits as its factorization.

256417241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5791.

The product of its digits is 13440, while the sum is 32.

The square root of 256417241 is about 16013.0334727684. The cubic root of 256417241 is about 635.3051964623.

The spelling of 256417241 in words is "two hundred fifty-six million, four hundred seventeen thousand, two hundred forty-one".