249436 has 12 divisors (see below), whose sum is σ = 476280. Its totient is φ = 113360.

The previous prime is 249433. The next prime is 249437. The reversal of 249436 is 634942.

It is a d-powerful number, because it can be written as 2¹⁷ + 4 + 4⁴ + 9⁵ + 3¹⁰ + 6 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249433) 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, 2791 + ... + 2878.

It is an arithmetic number, because the mean of its divisors is an integer number (39690).

2²⁴⁹⁴³⁶ is an apocalyptic number.

It is an amenable number.

249436 is a deficient number, since it is larger than the sum of its proper divisors (226844).

249436 is a wasteful number, since it uses less digits than its factorization.

249436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5684 (or 5682 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

The square root of 249436 is about 499.4356815447. The cubic root of 249436 is about 62.9486437940.

The spelling of 249436 in words is "two hundred forty-nine thousand, four hundred thirty-six".