243788992 has 28 divisors (see below), whose sum is σ = 484926640. Its totient is φ = 121602816.

The previous prime is 243788989. The next prime is 243788999. The reversal of 243788992 is 299887342.

243788992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (243788999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23758 + ... + 32434.

Almost surely, 2^243788992 is an apocalyptic number.

It is an amenable number.

243788992 is a deficient number, since it is larger than the sum of its proper divisors (241137648).

243788992 is an equidigital number, since it uses as much as digits as its factorization.

243788992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9128 (or 9118 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 52.

The square root of 243788992 is about 15613.7436894551. The cubic root of 243788992 is about 624.6997956669.

The spelling of 243788992 in words is "two hundred forty-three million, seven hundred eighty-eight thousand, nine hundred ninety-two".