249030 has 24 divisors (see below), whose sum is σ = 647712. Its totient is φ = 66384.

The previous prime is 249017. The next prime is 249037. The reversal of 249030 is 30942.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 248994 and 249012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249037) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1294 + ... + 1473.

It is an arithmetic number, because the mean of its divisors is an integer number (26988).

2²⁴⁹⁰³⁰ is an apocalyptic number.

249030 is an abundant number, since it is smaller than the sum of its proper divisors (398682).

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

249030 is a wasteful number, since it uses less digits than its factorization.

249030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2780 (or 2777 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 249030 is about 499.0290572702. The cubic root of 249030 is about 62.9144719983.

Adding to 249030 its reverse (30942), we get a palindrome (279972).

The spelling of 249030 in words is "two hundred forty-nine thousand, thirty".