243916608 has 112 divisors (see below), whose sum is σ = 704372480. Its totient is φ = 74041344.

The previous prime is 243916591. The next prime is 243916609. The reversal of 243916608 is 806619342.

243916608 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243916609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196566 + ... + 197802.

It is an arithmetic number, because the mean of its divisors is an integer number (6289040).

Almost surely, 2^243916608 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 243916608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (352186240).

243916608 is an abundant number, since it is smaller than the sum of its proper divisors (460455872).

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

243916608 is a wasteful number, since it uses less digits than its factorization.

243916608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344 (or 1334 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 243916608 is about 15617.8298108284. The cubic root of 243916608 is about 624.8087803287.

The spelling of 243916608 in words is "two hundred forty-three million, nine hundred sixteen thousand, six hundred eight".