249982 has 4 divisors (see below), whose sum is σ = 374976. Its totient is φ = 124990.

The previous prime is 249973. The next prime is 249989. The reversal of 249982 is 289942.

249982 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249989) by changing a digit.

249982 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 as a sum of consecutive naturals, namely, 62494 + ... + 62497.

It is an arithmetic number, because the mean of its divisors is an integer number (93744).

2²⁴⁹⁹⁸² is an apocalyptic number.

249982 is a deficient number, since it is larger than the sum of its proper divisors (124994).

249982 is a wasteful number, since it uses less digits than its factorization.

249982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124993.

The product of its digits is 10368, while the sum is 34.

The square root of 249982 is about 499.9819996760. The cubic root of 249982 is about 62.9945405532.

The spelling of 249982 in words is "two hundred forty-nine thousand, nine hundred eighty-two".