268779258 has 48 divisors (see below), whose sum is σ = 637041600. Its totient is φ = 81224640.

The previous prime is 268779257. The next prime is 268779293. The reversal of 268779258 is 852977862.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (268779257) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79323 + ... + 82641.

It is an arithmetic number, because the mean of its divisors is an integer number (13271700).

Almost surely, 2^268779258 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 268779258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318520800).

268779258 is an abundant number, since it is smaller than the sum of its proper divisors (368262342).

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

268779258 is a wasteful number, since it uses less digits than its factorization.

268779258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3747 (or 3744 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The square root of 268779258 is about 16394.4886471033. The cubic root of 268779258 is about 645.3548579149.

The spelling of 268779258 in words is "two hundred sixty-eight million, seven hundred seventy-nine thousand, two hundred fifty-eight".