249746 has 8 divisors (see below), whose sum is σ = 428160. Its totient is φ = 107028.

The previous prime is 249737. The next prime is 249749. The reversal of 249746 is 647942.

249746 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 2¹⁷ + 4 + 7⁶ + 9³ + 4⁴ + 6² .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (249749) 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, 8906 + ... + 8933.

It is an arithmetic number, because the mean of its divisors is an integer number (53520).

2²⁴⁹⁷⁴⁶ is an apocalyptic number.

249746 is a deficient number, since it is larger than the sum of its proper divisors (178414).

249746 is a wasteful number, since it uses less digits than its factorization.

249746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17848.

The product of its digits is 12096, while the sum is 32.

The square root of 249746 is about 499.7459354512. The cubic root of 249746 is about 62.9747106022.

The spelling of 249746 in words is "two hundred forty-nine thousand, seven hundred forty-six".