268692489 has 12 divisors (see below), whose sum is σ = 417966276. Its totient is φ = 165349152.

The previous prime is 268692449. The next prime is 268692491. The reversal of 268692489 is 984296862.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 59166864 + 209525625 = 7692^2 + 14475^2 .

It is not a de Polignac number, because 268692489 - 2²⁰ = 267643913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (268692449) 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, 1148142 + ... + 1148375.

It is an arithmetic number, because the mean of its divisors is an integer number (34830523).

Almost surely, 2^268692489 is an apocalyptic number.

It is an amenable number.

268692489 is a deficient number, since it is larger than the sum of its proper divisors (149273787).

268692489 is a wasteful number, since it uses less digits than its factorization.

268692489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2296536 (or 2296533 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The square root of 268692489 is about 16391.8421478490. The cubic root of 268692489 is about 645.2854046109.

The spelling of 268692489 in words is "two hundred sixty-eight million, six hundred ninety-two thousand, four hundred eighty-nine".