268376869 has 6 divisors (see below), whose sum is σ = 269209010. Its totient is φ = 267547200.

The previous prime is 268376861. The next prime is 268376887. The reversal of 268376869 is 968673862.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 212051844 + 56325025 = 14562^2 + 7505^2 .

It is not a de Polignac number, because 268376869 - 2³ = 268376861 is a prime.

It is a super-2 number, since 2×268376869² = 144052287628486322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268376861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 159967 + ... + 161635.

Almost surely, 2^268376869 is an apocalyptic number.

It is an amenable number.

268376869 is a deficient number, since it is larger than the sum of its proper divisors (832141).

268376869 is an frugal number, since it uses more digits than its factorization.

268376869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2471 (or 2070 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 55.

The square root of 268376869 is about 16382.2119690840. The cubic root of 268376869 is about 645.0326438219.

The spelling of 268376869 in words is "two hundred sixty-eight million, three hundred seventy-six thousand, eight hundred sixty-nine".