268378236 has 72 divisors (see below), whose sum is σ = 778587264. Its totient is φ = 76356000.

The previous prime is 268378219. The next prime is 268378289. The reversal of 268378236 is 632873862.

It is a junction number, because it is equal to n+sod(n) for n = 268378191 and 268378200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61131 + ... + 65373.

It is an arithmetic number, because the mean of its divisors is an integer number (10813712).

Almost surely, 2^268378236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 268378236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (389293632).

268378236 is an abundant number, since it is smaller than the sum of its proper divisors (510209028).

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

268378236 is a wasteful number, since it uses less digits than its factorization.

268378236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4511 (or 4506 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 268378236 is about 16382.2536911134. The cubic root of 268378236 is about 645.0337389959.

The spelling of 268378236 in words is "two hundred sixty-eight million, three hundred seventy-eight thousand, two hundred thirty-six".