268338813 has 8 divisors (see below), whose sum is σ = 358706400. Its totient is φ = 178431888.

The previous prime is 268338781. The next prime is 268338823. The reversal of 268338813 is 318833862.

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

It is not a de Polignac number, because 268338813 - 2⁵ = 268338781 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268338823) 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, 113803 + ... + 116136.

It is an arithmetic number, because the mean of its divisors is an integer number (44838300).

Almost surely, 2^268338813 is an apocalyptic number.

It is an amenable number.

268338813 is a deficient number, since it is larger than the sum of its proper divisors (90367587).

268338813 is a wasteful number, since it uses less digits than its factorization.

268338813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230331.

The product of its digits is 165888, while the sum is 42.

The square root of 268338813 is about 16381.0504241944. The cubic root of 268338813 is about 645.0021537095.

The spelling of 268338813 in words is "two hundred sixty-eight million, three hundred thirty-eight thousand, eight hundred thirteen".