243105304 has 64 divisors (see below), whose sum is σ = 547192800. Its totient is φ = 100030464.

The previous prime is 243105299. The next prime is 243105337. The reversal of 243105304 is 403501342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29974 + ... + 37210.

Almost surely, 2^243105304 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 243105304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273596400).

243105304 is an abundant number, since it is smaller than the sum of its proper divisors (304087496).

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

243105304 is a wasteful number, since it uses less digits than its factorization.

243105304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7292 (or 7288 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 243105304 is about 15591.8345296504. The cubic root of 243105304 is about 624.1152742876.

Adding to 243105304 its reverse (403501342), we get a palindrome (646606646).

The spelling of 243105304 in words is "two hundred forty-three million, one hundred five thousand, three hundred four".