249180 has 24 divisors (see below), whose sum is σ = 697872. Its totient is φ = 66432.

The previous prime is 249143. The next prime is 249181. The reversal of 249180 is 81942.

It is a self number, because there is not a number n which added to its sum of digits gives 249180.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249181) by changing a digit.

249180 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 in 7 ways as a sum of consecutive naturals, for example, 2017 + ... + 2136.

It is an arithmetic number, because the mean of its divisors is an integer number (29078).

2²⁴⁹¹⁸⁰ is an apocalyptic number.

249180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

249180 is an abundant number, since it is smaller than the sum of its proper divisors (448692).

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

249180 is a wasteful number, since it uses less digits than its factorization.

249180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4165 (or 4163 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 249180 is about 499.1793264950. The cubic root of 249180 is about 62.9271013691.

The spelling of 249180 in words is "two hundred forty-nine thousand, one hundred eighty".