256299468 has 12 divisors (see below), whose sum is σ = 598032120. Its totient is φ = 85433152.

The previous prime is 256299457. The next prime is 256299499. The reversal of 256299468 is 864992652.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 256299468.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10679133 + ... + 10679156.

It is an arithmetic number, because the mean of its divisors is an integer number (49836010).

Almost surely, 2^256299468 is an apocalyptic number.

It is an amenable number.

256299468 is an abundant number, since it is smaller than the sum of its proper divisors (341732652).

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

256299468 is a wasteful number, since it uses less digits than its factorization.

256299468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21358296 (or 21358294 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 51.

The square root of 256299468 is about 16009.3556397502. The cubic root of 256299468 is about 635.2079158780.

The spelling of 256299468 in words is "two hundred fifty-six million, two hundred ninety-nine thousand, four hundred sixty-eight".