268495291 has 4 divisors (see below), whose sum is σ = 268759800. Its totient is φ = 268230784.

The previous prime is 268495243. The next prime is 268495303. The reversal of 268495291 is 192594862.

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

It is a cyclic number.

It is not a de Polignac number, because 268495291 - 2⁷ = 268495163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268495211) 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, 130726 + ... + 132763.

It is an arithmetic number, because the mean of its divisors is an integer number (67189950).

Almost surely, 2^268495291 is an apocalyptic number.

268495291 is a deficient number, since it is larger than the sum of its proper divisors (264509).

268495291 is a wasteful number, since it uses less digits than its factorization.

268495291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264508.

The product of its digits is 311040, while the sum is 46.

The square root of 268495291 is about 16385.8259175423. The cubic root of 268495291 is about 645.1275039882.

The spelling of 268495291 in words is "two hundred sixty-eight million, four hundred ninety-five thousand, two hundred ninety-one".