268430256 has 60 divisors (see below), whose sum is σ = 763572160. Its totient is φ = 88007040.

The previous prime is 268430251. The next prime is 268430287. The reversal of 268430256 is 652034862.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 268430256.

It is not an unprimeable number, because it can be changed into a prime (268430251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6496 + ... + 24063.

Almost surely, 2^268430256 is an apocalyptic number.

It is an amenable number.

268430256 is an abundant number, since it is smaller than the sum of its proper divisors (495141904).

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

268430256 is a wasteful number, since it uses less digits than its factorization.

268430256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30634 (or 30625 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 268430256 is about 16383.8413078252. The cubic root of 268430256 is about 645.0754121309.

The spelling of 268430256 in words is "two hundred sixty-eight million, four hundred thirty thousand, two hundred fifty-six".