256435528 has 32 divisors (see below), whose sum is σ = 489888000. Its totient is φ = 125816320.

The previous prime is 256435519. The next prime is 256435541. The reversal of 256435528 is 825534652.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 134808 + ... + 136696.

It is an arithmetic number, because the mean of its divisors is an integer number (15309000).

Almost surely, 2^256435528 is an apocalyptic number.

It is an amenable number.

256435528 is a deficient number, since it is larger than the sum of its proper divisors (233452472).

256435528 is a wasteful number, since it uses less digits than its factorization.

256435528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2205 (or 2201 counting only the distinct ones).

The product of its digits is 288000, while the sum is 40.

The square root of 256435528 is about 16013.6044662031. The cubic root of 256435528 is about 635.3202988659.

The spelling of 256435528 in words is "two hundred fifty-six million, four hundred thirty-five thousand, five hundred twenty-eight".