243198384 has 120 divisors (see below), whose sum is σ = 743921136. Its totient is φ = 68006400.

The previous prime is 243198367. The next prime is 243198391. The reversal of 243198384 is 483891342.

It is a super-2 number, since 2×243198384² = 118290907960422912, which contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 73894 + ... + 77114.

Almost surely, 2^243198384 is an apocalyptic number.

243198384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243198384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371960568).

243198384 is an abundant number, since it is smaller than the sum of its proper divisors (500722752).

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

243198384 is a wasteful number, since it uses less digits than its factorization.

243198384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3267 (or 3250 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 243198384 is about 15594.8191397015. The cubic root of 243198384 is about 624.1949177400.

The spelling of 243198384 in words is "two hundred forty-three million, one hundred ninety-eight thousand, three hundred eighty-four".