268399355 has 16 divisors (see below), whose sum is σ = 369304320. Its totient is φ = 183438432.

The previous prime is 268399337. The next prime is 268399361. The reversal of 268399355 is 553993862.

It is a cyclic number.

It is not a de Polignac number, because 268399355 - 2²⁰ = 267350779 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1745 + ... + 23234.

It is an arithmetic number, because the mean of its divisors is an integer number (23081520).

Almost surely, 2^268399355 is an apocalyptic number.

268399355 is a deficient number, since it is larger than the sum of its proper divisors (100904965).

268399355 is a wasteful number, since it uses less digits than its factorization.

268399355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25298.

The product of its digits is 1749600, while the sum is 50.

The square root of 268399355 is about 16382.8982478681. The cubic root of 268399355 is about 645.0506580407.

The spelling of 268399355 in words is "two hundred sixty-eight million, three hundred ninety-nine thousand, three hundred fifty-five".