256126384 has 20 divisors (see below), whose sum is σ = 522363640. Its totient is φ = 121322880.

The previous prime is 256126357. The next prime is 256126393. The reversal of 256126384 is 483621652.

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 3 ways as a sum of consecutive naturals, for example, 420957 + ... + 421564.

It is an arithmetic number, because the mean of its divisors is an integer number (26118182).

Almost surely, 2^256126384 is an apocalyptic number.

It is an amenable number.

256126384 is an abundant number, since it is smaller than the sum of its proper divisors (266237256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256126384 is a wasteful number, since it uses less digits than its factorization.

256126384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842548 (or 842542 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

The square root of 256126384 is about 16003.9490126656. The cubic root of 256126384 is about 635.0648942710.

The spelling of 256126384 in words is "two hundred fifty-six million, one hundred twenty-six thousand, three hundred eighty-four".