268641831 has 8 divisors (see below), whose sum is σ = 360923904. Its totient is φ = 177727160.

The previous prime is 268641823. The next prime is 268641833. The reversal of 268641831 is 138146862.

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

It is a cyclic number.

It is not a de Polignac number, because 268641831 - 2³ = 268641823 is a prime.

It is a super-2 number, since 2×268641831² = 144336866726065122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 268641831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268641833) 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, 341391 + ... + 342176.

It is an arithmetic number, because the mean of its divisors is an integer number (45115488).

Almost surely, 2^268641831 is an apocalyptic number.

268641831 is a deficient number, since it is larger than the sum of its proper divisors (92282073).

268641831 is a wasteful number, since it uses less digits than its factorization.

268641831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683701.

The product of its digits is 55296, while the sum is 39.

The square root of 268641831 is about 16390.2968551518. The cubic root of 268641831 is about 645.2448490516.

The spelling of 268641831 in words is "two hundred sixty-eight million, six hundred forty-one thousand, eight hundred thirty-one".