243205248 has 256 divisors, whose sum is σ = 784143360. Its totient is φ = 65802240.

The previous prime is 243205241. The next prime is 243205271. The reversal of 243205248 is 842502342.

243205248 is a modest number, since divided by 5248 gives 2432 as remainder.

It is not an unprimeable number, because it can be changed into a prime (243205241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2361165 + ... + 2361267.

It is an arithmetic number, because the mean of its divisors is an integer number (3063060).

Almost surely, 2^243205248 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 243205248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (392071680).

243205248 is an abundant number, since it is smaller than the sum of its proper divisors (540938112).

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

243205248 is a wasteful number, since it uses less digits than its factorization.

243205248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 243205248 is about 15595.0392112364. The cubic root of 243205248 is about 624.2007900839.

The spelling of 243205248 in words is "two hundred forty-three million, two hundred five thousand, two hundred forty-eight".