305244 has 36 divisors (see below), whose sum is σ = 789880. Its totient is φ = 99360.

The previous prime is 305243. The next prime is 305267. The reversal of 305244 is 442503.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

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

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 305244.

It is not an unprimeable number, because it can be changed into a prime (305243) 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, 2127 + ... + 2265.

2³⁰⁵²⁴⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 305244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (394940).

305244 is an abundant number, since it is smaller than the sum of its proper divisors (484636).

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

305244 is a wasteful number, since it uses less digits than its factorization.

305244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 305244 is about 552.4889139159. The cubic root of 305244 is about 67.3311003627.

Adding to 305244 its reverse (442503), we get a palindrome (747747).

The spelling of 305244 in words is "three hundred five thousand, two hundred forty-four".