256694848 has 14 divisors (see below), whose sum is σ = 509378966. Its totient is φ = 128347392.

The previous prime is 256694839. The next prime is 256694857. The reversal of 256694848 is 848496652.

It is an interprime number because it is at equal distance from previous prime (256694839) and next prime (256694857).

It can be written as a sum of positive squares in only one way, i.e., 232013824 + 24681024 = 15232^2 + 4968^2 .

It is a junction number, because it is equal to n+sod(n) for n = 256694795 and 256694804.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2005365 + ... + 2005492.

Almost surely, 2^256694848 is an apocalyptic number.

It is an amenable number.

256694848 is a deficient number, since it is larger than the sum of its proper divisors (252684118).

256694848 is an equidigital number, since it uses as much as digits as its factorization.

256694848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4010869 (or 4010859 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 52.

The square root of 256694848 is about 16021.6992856563. The cubic root of 256694848 is about 635.5343822491.

The spelling of 256694848 in words is "two hundred fifty-six million, six hundred ninety-four thousand, eight hundred forty-eight".