249828 has 24 divisors (see below), whose sum is σ = 591360. Its totient is φ = 82080.

The previous prime is 249827. The next prime is 249833. The reversal of 249828 is 828942.

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 249828.

It is not an unprimeable number, because it can be changed into a prime (249827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1213 + ... + 1403.

It is an arithmetic number, because the mean of its divisors is an integer number (24640).

2²⁴⁹⁸²⁸ is an apocalyptic number.

It is an amenable number.

249828 is an abundant number, since it is smaller than the sum of its proper divisors (341532).

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

249828 is a wasteful number, since it uses less digits than its factorization.

249828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307 (or 305 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 249828 is about 499.8279704058. The cubic root of 249828 is about 62.9816020856.

The spelling of 249828 in words is "two hundred forty-nine thousand, eight hundred twenty-eight".