249874 has 8 divisors (see below), whose sum is σ = 378828. Its totient is φ = 123600.

The previous prime is 249871. The next prime is 249881. The reversal of 249874 is 478942.

It is a happy number.

249874 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 207025 + 42849 = 455^2 + 207^2 .

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

It is not an unprimeable number, because it can be changed into a prime (249871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417 + ... + 820.

2²⁴⁹⁸⁷⁴ is an apocalyptic number.

249874 is a deficient number, since it is larger than the sum of its proper divisors (128954).

249874 is a wasteful number, since it uses less digits than its factorization.

249874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340.

The product of its digits is 16128, while the sum is 34.

The square root of 249874 is about 499.8739841200. The cubic root of 249874 is about 62.9854673794.

The spelling of 249874 in words is "two hundred forty-nine thousand, eight hundred seventy-four".