268959745 has 4 divisors (see below), whose sum is σ = 322751700. Its totient is φ = 215167792.

The previous prime is 268959731. The next prime is 268959767. The reversal of 268959745 is 547959862.

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

It can be written as a sum of positive squares in 2 ways, for example, as 67092481 + 201867264 = 8191^2 + 14208^2 .

It is a cyclic number.

It is not a de Polignac number, because 268959745 - 2⁹ = 268959233 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26895970 + ... + 26895979.

It is an arithmetic number, because the mean of its divisors is an integer number (80687925).

It is a Proth number, since it is equal to 513 ⋅ 2¹⁹ + 1 and 513 < 2¹⁹.

Almost surely, 2^268959745 is an apocalyptic number.

It is an amenable number.

268959745 is a deficient number, since it is larger than the sum of its proper divisors (53791955).

268959745 is an equidigital number, since it uses as much as digits as its factorization.

268959745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53791954.

The product of its digits is 5443200, while the sum is 55.

The square root of 268959745 is about 16399.9922256079. The cubic root of 268959745 is about 645.4992789054.

The spelling of 268959745 in words is "two hundred sixty-eight million, nine hundred fifty-nine thousand, seven hundred forty-five".