268623293 has 4 divisors (see below), whose sum is σ = 275883420. Its totient is φ = 261363168.

The previous prime is 268623281. The next prime is 268623319. The reversal of 268623293 is 392326862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 257185369 + 11437924 = 16037^2 + 3382^2 .

It is a cyclic number.

It is not a de Polignac number, because 268623293 - 2²⁰ = 267574717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 268623293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268623253) 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, 3630008 + ... + 3630081.

It is an arithmetic number, because the mean of its divisors is an integer number (68970855).

Almost surely, 2^268623293 is an apocalyptic number.

It is an amenable number.

268623293 is a deficient number, since it is larger than the sum of its proper divisors (7260127).

268623293 is an equidigital number, since it uses as much as digits as its factorization.

268623293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7260126.

The product of its digits is 186624, while the sum is 41.

The square root of 268623293 is about 16389.7313278772. The cubic root of 268623293 is about 645.2300067066.

The spelling of 268623293 in words is "two hundred sixty-eight million, six hundred twenty-three thousand, two hundred ninety-three".