256023616 has 28 divisors (see below), whose sum is σ = 515638288. Its totient is φ = 126099072.

The previous prime is 256023601. The next prime is 256023619. The reversal of 256023616 is 616320652.

256023616 is a modest number, since divided by 23616 gives 2560 as remainder.

It is not an unprimeable number, because it can be changed into a prime (256023619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25566 + ... + 34141.

Almost surely, 2^256023616 is an apocalyptic number.

It is an amenable number.

256023616 is an abundant number, since it is smaller than the sum of its proper divisors (259614672).

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

256023616 is an equidigital number, since it uses as much as digits as its factorization.

256023616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59786 (or 59776 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 256023616 is about 16000.7379829807. The cubic root of 256023616 is about 634.9799452199.

The spelling of 256023616 in words is "two hundred fifty-six million, twenty-three thousand, six hundred sixteen".