268489785 has 32 divisors (see below), whose sum is σ = 439240320. Its totient is φ = 139995648.

The previous prime is 268489783. The next prime is 268489799. The reversal of 268489785 is 587984862.

It is not a de Polignac number, because 268489785 - 2¹ = 268489783 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 362946 + ... + 363684.

It is an arithmetic number, because the mean of its divisors is an integer number (13726260).

Almost surely, 2^268489785 is an apocalyptic number.

It is an amenable number.

268489785 is a deficient number, since it is larger than the sum of its proper divisors (170750535).

268489785 is a wasteful number, since it uses less digits than its factorization.

268489785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257.

The product of its digits is 7741440, while the sum is 57.

The square root of 268489785 is about 16385.6579056198. The cubic root of 268489785 is about 645.1230941079.

The spelling of 268489785 in words is "two hundred sixty-eight million, four hundred eighty-nine thousand, seven hundred eighty-five".