268890271 has 16 divisors (see below), whose sum is σ = 294235200. Its totient is φ = 244240128.

The previous prime is 268890269. The next prime is 268890287. The reversal of 268890271 is 172098862.

It is a cyclic number.

It is not a de Polignac number, because 268890271 - 2¹ = 268890269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268890371) 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 15 ways as a sum of consecutive naturals, for example, 320070 + ... + 320908.

It is an arithmetic number, because the mean of its divisors is an integer number (18389700).

Almost surely, 2^268890271 is an apocalyptic number.

268890271 is a deficient number, since it is larger than the sum of its proper divisors (25344929).

268890271 is a wasteful number, since it uses less digits than its factorization.

268890271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 268890271 is about 16397.8739780497. The cubic root of 268890271 is about 645.4436952731.

The spelling of 268890271 in words is "two hundred sixty-eight million, eight hundred ninety thousand, two hundred seventy-one".