256846242 has 32 divisors (see below), whose sum is σ = 522765504. Its totient is φ = 84110400.

The previous prime is 256846229. The next prime is 256846283. The reversal of 256846242 is 242648652.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 256846242.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216892 + ... + 218072.

It is an arithmetic number, because the mean of its divisors is an integer number (16336422).

Almost surely, 2^256846242 is an apocalyptic number.

256846242 is an abundant number, since it is smaller than the sum of its proper divisors (265919262).

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

256846242 is a wasteful number, since it uses less digits than its factorization.

256846242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794.

The product of its digits is 184320, while the sum is 39.

The square root of 256846242 is about 16026.4232441303. The cubic root of 256846242 is about 635.6592999399.

The spelling of 256846242 in words is "two hundred fifty-six million, eight hundred forty-six thousand, two hundred forty-two".