268649393 has 8 divisors (see below), whose sum is σ = 271071360. Its totient is φ = 266237440.

The previous prime is 268649389. The next prime is 268649411. The reversal of 268649393 is 393946862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 268649393 - 2² = 268649389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268649333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57713 + ... + 62193.

It is an arithmetic number, because the mean of its divisors is an integer number (33883920).

Almost surely, 2^268649393 is an apocalyptic number.

It is an amenable number.

268649393 is a deficient number, since it is larger than the sum of its proper divisors (2421967).

268649393 is a wasteful number, since it uses less digits than its factorization.

268649393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5007.

The product of its digits is 1679616, while the sum is 50.

The square root of 268649393 is about 16390.5275387951. The cubic root of 268649393 is about 645.2509033281.

The spelling of 268649393 in words is "two hundred sixty-eight million, six hundred forty-nine thousand, three hundred ninety-three".