268633631 has 12 divisors (see below), whose sum is σ = 322574400. Its totient is φ = 222828480.

The previous prime is 268633621. The next prime is 268633637. The reversal of 268633631 is 136336862.

It is not a de Polignac number, because 268633631 - 2¹⁰ = 268632607 is a prime.

It is a super-2 number, since 2×268633631² = 144328055408488322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268633637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86906 + ... + 89943.

It is an arithmetic number, because the mean of its divisors is an integer number (26881200).

Almost surely, 2^268633631 is an apocalyptic number.

268633631 is a deficient number, since it is larger than the sum of its proper divisors (53940769).

268633631 is a wasteful number, since it uses less digits than its factorization.

268633631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176894 (or 176887 counting only the distinct ones).

The product of its digits is 93312, while the sum is 38.

The square root of 268633631 is about 16390.0467052416. The cubic root of 268633631 is about 645.2382838521.

The spelling of 268633631 in words is "two hundred sixty-eight million, six hundred thirty-three thousand, six hundred thirty-one".