249258 has 8 divisors (see below), whose sum is σ = 498528. Its totient is φ = 83084.

The previous prime is 249257. The next prime is 249287. The reversal of 249258 is 852942.

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

249258 is an admirable number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 249258.

It is not an unprimeable number, because it can be changed into a prime (249253) 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, 20766 + ... + 20777.

It is an arithmetic number, because the mean of its divisors is an integer number (62316).

2²⁴⁹²⁵⁸ is an apocalyptic number.

249258 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

249258 is a wasteful number, since it uses less digits than its factorization.

249258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41548.

The product of its digits is 5760, while the sum is 30.

The square root of 249258 is about 499.2574486174. The cubic root of 249258 is about 62.9336666390.

The spelling of 249258 in words is "two hundred forty-nine thousand, two hundred fifty-eight".