268854639 has 8 divisors (see below), whose sum is σ = 359868720. Its totient is φ = 178538496.

The previous prime is 268854631. The next prime is 268854653. The reversal of 268854639 is 936458862.

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

It is not a de Polignac number, because 268854639 - 2³ = 268854631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 268854591 and 268854600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268854631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173584 + ... + 175125.

It is an arithmetic number, because the mean of its divisors is an integer number (44983590).

Almost surely, 2^268854639 is an apocalyptic number.

268854639 is a deficient number, since it is larger than the sum of its proper divisors (91014081).

268854639 is a wasteful number, since it uses less digits than its factorization.

268854639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348969.

The product of its digits is 2488320, while the sum is 51.

The square root of 268854639 is about 16396.7874597434. The cubic root of 268854639 is about 645.4151836853.

The spelling of 268854639 in words is "two hundred sixty-eight million, eight hundred fifty-four thousand, six hundred thirty-nine".