268665318 has 12 divisors (see below), whose sum is σ = 582108228. Its totient is φ = 89555100.

The previous prime is 268665317. The next prime is 268665361. The reversal of 268665318 is 813566862.

It is a super-2 number, since 2×268665318² = 144362106192082248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268665311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7462908 + ... + 7462943.

It is an arithmetic number, because the mean of its divisors is an integer number (48509019).

Almost surely, 2^268665318 is an apocalyptic number.

268665318 is an abundant number, since it is smaller than the sum of its proper divisors (313442910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

268665318 is a wasteful number, since it uses less digits than its factorization.

268665318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14925859 (or 14925856 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 268665318 is about 16391.0133304808. The cubic root of 268665318 is about 645.2636528048.

The spelling of 268665318 in words is "two hundred sixty-eight million, six hundred sixty-five thousand, three hundred eighteen".