249411 has 4 divisors (see below), whose sum is σ = 332552. Its totient is φ = 166272.

The previous prime is 249397. The next prime is 249419. The reversal of 249411 is 114942.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 249411 - 2¹¹ = 247363 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 249411.

It is not an unprimeable number, because it can be changed into a prime (249419) 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, 41566 + ... + 41571.

It is an arithmetic number, because the mean of its divisors is an integer number (83138).

2²⁴⁹⁴¹¹ is an apocalyptic number.

249411 is a deficient number, since it is larger than the sum of its proper divisors (83141).

249411 is an equidigital number, since it uses as much as digits as its factorization.

249411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83140.

The product of its digits is 288, while the sum is 21.

The square root of 249411 is about 499.4106526697. The cubic root of 249411 is about 62.9465406912.

It can be divided in two parts, 24941 and 1, that added together give a palindrome (24942).

The spelling of 249411 in words is "two hundred forty-nine thousand, four hundred eleven".