268530889 has 16 divisors (see below), whose sum is σ = 301320000. Its totient is φ = 237233920.

The previous prime is 268530887. The next prime is 268530907. The reversal of 268530889 is 988035862.

It is not a de Polignac number, because 268530889 - 2¹ = 268530887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268530883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55437 + ... + 60085.

It is an arithmetic number, because the mean of its divisors is an integer number (18832500).

Almost surely, 2^268530889 is an apocalyptic number.

It is an amenable number.

268530889 is a deficient number, since it is larger than the sum of its proper divisors (32789111).

268530889 is a wasteful number, since it uses less digits than its factorization.

268530889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4808.

The product of its (nonzero) digits is 829440, while the sum is 49.

The square root of 268530889 is about 16386.9121252297. The cubic root of 268530889 is about 645.1560137794.

The spelling of 268530889 in words is "two hundred sixty-eight million, five hundred thirty thousand, eight hundred eighty-nine".