268181838 has 36 divisors (see below), whose sum is σ = 590040360. Its totient is φ = 88033176.

The previous prime is 268181833. The next prime is 268181869. The reversal of 268181838 is 838181862.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 268181793 and 268181802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268181833) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 79143 + ... + 82461.

It is an arithmetic number, because the mean of its divisors is an integer number (16390010).

Almost surely, 2^268181838 is an apocalyptic number.

268181838 is an abundant number, since it is smaller than the sum of its proper divisors (321858522).

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

268181838 is a wasteful number, since it uses less digits than its factorization.

268181838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3461 (or 3391 counting only the distinct ones).

The product of its digits is 147456, while the sum is 45.

The square root of 268181838 is about 16376.2583638632. The cubic root of 268181838 is about 644.8763563248.

It can be divided in two parts, 268 and 181838, that added together give a triangular number (182106 = T₆₀₃).

The spelling of 268181838 in words is "two hundred sixty-eight million, one hundred eighty-one thousand, eight hundred thirty-eight".