268091955 has 24 divisors (see below), whose sum is σ = 492028992. Its totient is φ = 134571264.

The previous prime is 268091911. The next prime is 268091959. The reversal of 268091955 is 559190862.

It is not a de Polignac number, because 268091955 - 2¹⁴ = 268075571 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 268091955.

It is not an unprimeable number, because it can be changed into a prime (268091959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174459 + ... + 175988.

It is an arithmetic number, because the mean of its divisors is an integer number (20501208).

Almost surely, 2^268091955 is an apocalyptic number.

268091955 is a deficient number, since it is larger than the sum of its proper divisors (223937037).

268091955 is a wasteful number, since it uses less digits than its factorization.

268091955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350475 (or 350472 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The square root of 268091955 is about 16373.5138256881. The cubic root of 268091955 is about 644.8043033491.

The spelling of 268091955 in words is "two hundred sixty-eight million, ninety-one thousand, nine hundred fifty-five".