268942849 has 4 divisors (see below), whose sum is σ = 307363264. Its totient is φ = 230522436.

The previous prime is 268942847. The next prime is 268942871. The reversal of 268942849 is 948249862.

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.

It is a cyclic number.

It is not a de Polignac number, because 268942849 - 2¹ = 268942847 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 268942796 and 268942805.

It is not an unprimeable number, because it can be changed into a prime (268942847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19210197 + ... + 19210210.

It is an arithmetic number, because the mean of its divisors is an integer number (76840816).

Almost surely, 2^268942849 is an apocalyptic number.

It is an amenable number.

268942849 is a deficient number, since it is larger than the sum of its proper divisors (38420415).

268942849 is an equidigital number, since it uses as much as digits as its factorization.

268942849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38420414.

The product of its digits is 1990656, while the sum is 52.

The square root of 268942849 is about 16399.4770953223. The cubic root of 268942849 is about 645.4857619084.

The spelling of 268942849 in words is "two hundred sixty-eight million, nine hundred forty-two thousand, eight hundred forty-nine".