268561417 has 4 divisors (see below), whose sum is σ = 268595200. Its totient is φ = 268527636.

The previous prime is 268561411. The next prime is 268561457. The reversal of 268561417 is 714165862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268561417 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 268561417.

It is not an unprimeable number, because it can be changed into a prime (268561411) 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, 2308 + ... + 23290.

It is an arithmetic number, because the mean of its divisors is an integer number (67148800).

Almost surely, 2^268561417 is an apocalyptic number.

It is an amenable number.

268561417 is a deficient number, since it is larger than the sum of its proper divisors (33783).

268561417 is a wasteful number, since it uses less digits than its factorization.

268561417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33782.

The product of its digits is 80640, while the sum is 40.

The square root of 268561417 is about 16387.8435738202. The cubic root of 268561417 is about 645.1804610929.

The spelling of 268561417 in words is "two hundred sixty-eight million, five hundred sixty-one thousand, four hundred seventeen".