268444091 has 4 divisors (see below), whose sum is σ = 270557952. Its totient is φ = 266330232.

The previous prime is 268444087. The next prime is 268444123. The reversal of 268444091 is 190444862.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 268444091 - 2² = 268444087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268444051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1056740 + ... + 1056993.

It is an arithmetic number, because the mean of its divisors is an integer number (67639488).

Almost surely, 2^268444091 is an apocalyptic number.

268444091 is a deficient number, since it is larger than the sum of its proper divisors (2113861).

268444091 is a wasteful number, since it uses less digits than its factorization.

268444091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113860.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 268444091 is about 16384.2635171679. The cubic root of 268444091 is about 645.0864944199.

The spelling of 268444091 in words is "two hundred sixty-eight million, four hundred forty-four thousand, ninety-one".