268683621 has 8 divisors (see below), whose sum is σ = 358410624. Its totient is φ = 179039520.

The previous prime is 268683607. The next prime is 268683643. The reversal of 268683621 is 126386862.

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

It is not a de Polignac number, because 268683621 - 2¹¹ = 268681573 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268683671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12720 + ... + 26441.

It is an arithmetic number, because the mean of its divisors is an integer number (44801328).

Almost surely, 2^268683621 is an apocalyptic number.

It is an amenable number.

268683621 is a deficient number, since it is larger than the sum of its proper divisors (89727003).

268683621 is a wasteful number, since it uses less digits than its factorization.

268683621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41451.

The product of its digits is 165888, while the sum is 42.

The square root of 268683621 is about 16391.5716452084. The cubic root of 268683621 is about 645.2783054745.

The spelling of 268683621 in words is "two hundred sixty-eight million, six hundred eighty-three thousand, six hundred twenty-one".