268489786 has 8 divisors (see below), whose sum is σ = 402944724. Its totient is φ = 134174880.

The previous prime is 268489783. The next prime is 268489799. The reversal of 268489786 is 687984862.

It can be written as a sum of positive squares in 2 ways, for example, as 261630625 + 6859161 = 16175^2 + 2619^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 268489786.

It is not an unprimeable number, because it can be changed into a prime (268489783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30075 + ... + 37966.

Almost surely, 2^268489786 is an apocalyptic number.

268489786 is a deficient number, since it is larger than the sum of its proper divisors (134454938).

268489786 is a wasteful number, since it uses less digits than its factorization.

268489786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70016.

The product of its digits is 9289728, while the sum is 58.

The square root of 268489786 is about 16385.6579361343. The cubic root of 268489786 is about 645.1230949088.

The spelling of 268489786 in words is "two hundred sixty-eight million, four hundred eighty-nine thousand, seven hundred eighty-six".