249268 has 12 divisors (see below), whose sum is σ = 441252. Its totient is φ = 123200.

The previous prime is 249257. The next prime is 249287. The reversal of 249268 is 862942.

249268 is nontrivially palindromic in base 3.

It can be written as a sum of positive squares in 2 ways, for example, as 121104 + 128164 = 348^2 + 358^2 .

It is a congruent number.

It is an unprimeable number.

249268 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 96 + ... + 712.

It is an arithmetic number, because the mean of its divisors is an integer number (36771).

2²⁴⁹²⁶⁸ is an apocalyptic number.

It is an amenable number.

249268 is a deficient number, since it is larger than the sum of its proper divisors (191984).

249268 is a wasteful number, since it uses less digits than its factorization.

249268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722 (or 720 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 249268 is about 499.2674633901. The cubic root of 249268 is about 62.9345082412.

The spelling of 249268 in words is "two hundred forty-nine thousand, two hundred sixty-eight".