256426588 has 18 divisors (see below), whose sum is σ = 493251248. Its totient is φ = 116557320.

The previous prime is 256426571. The next prime is 256426607. The reversal of 256426588 is 885624652.

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 5 ways as a sum of consecutive naturals, for example, 264420 + ... + 265387.

Almost surely, 2^256426588 is an apocalyptic number.

It is an amenable number.

256426588 is a deficient number, since it is larger than the sum of its proper divisors (236824660).

256426588 is a wasteful number, since it uses less digits than its factorization.

256426588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529833 (or 529820 counting only the distinct ones).

The product of its digits is 921600, while the sum is 46.

The square root of 256426588 is about 16013.3253261151. The cubic root of 256426588 is about 635.3129158152.

The spelling of 256426588 in words is "two hundred fifty-six million, four hundred twenty-six thousand, five hundred eighty-eight".