256445014 has 24 divisors (see below), whose sum is σ = 463984848. Its totient is φ = 104118480.

The previous prime is 256444997. The next prime is 256445029. The reversal of 256445014 is 410544652.

It is a happy number.

It is a congruent number.

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 in 11 ways as a sum of consecutive naturals, for example, 20317 + ... + 30424.

It is an arithmetic number, because the mean of its divisors is an integer number (19332702).

Almost surely, 2^256445014 is an apocalyptic number.

256445014 is a deficient number, since it is larger than the sum of its proper divisors (207539834).

256445014 is a wasteful number, since it uses less digits than its factorization.

256445014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50788 (or 50769 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 256445014 is about 16013.9006491236. The cubic root of 256445014 is about 635.3281326401.

Adding to 256445014 its reverse (410544652), we get a palindrome (666989666).

The spelling of 256445014 in words is "two hundred fifty-six million, four hundred forty-five thousand, fourteen".