268289349 has 4 divisors (see below), whose sum is σ = 357719136. Its totient is φ = 178859564.

The previous prime is 268289327. The next prime is 268289369. The reversal of 268289349 is 943982862.

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 268289349 - 2²⁰ = 267240773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268289309) 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, 44714889 + ... + 44714894.

It is an arithmetic number, because the mean of its divisors is an integer number (89429784).

Almost surely, 2^268289349 is an apocalyptic number.

It is an amenable number.

268289349 is a deficient number, since it is larger than the sum of its proper divisors (89429787).

268289349 is an equidigital number, since it uses as much as digits as its factorization.

268289349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89429786.

The product of its digits is 1492992, while the sum is 51.

The square root of 268289349 is about 16379.5405613222. The cubic root of 268289349 is about 644.9625193051.

The spelling of 268289349 in words is "two hundred sixty-eight million, two hundred eighty-nine thousand, three hundred forty-nine".