268633291 has 4 divisors (see below), whose sum is σ = 270281512. Its totient is φ = 266985072.

The previous prime is 268633273. The next prime is 268633297. The reversal of 268633291 is 192336862.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 192336862 = 2 ⋅96168431.

It is a cyclic number.

It is not a de Polignac number, because 268633291 - 2⁷ = 268633163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268633297) 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, 823866 + ... + 824191.

It is an arithmetic number, because the mean of its divisors is an integer number (67570378).

Almost surely, 2^268633291 is an apocalyptic number.

268633291 is a deficient number, since it is larger than the sum of its proper divisors (1648221).

268633291 is a wasteful number, since it uses less digits than its factorization.

268633291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648220.

The product of its digits is 93312, while the sum is 40.

The square root of 268633291 is about 16390.0363330897. The cubic root of 268633291 is about 645.2380116336.

The spelling of 268633291 in words is "two hundred sixty-eight million, six hundred thirty-three thousand, two hundred ninety-one".