243253328 has 20 divisors (see below), whose sum is σ = 482799828. Its totient is φ = 118659840.

The previous prime is 243253319. The next prime is 243253343. The reversal of 243253328 is 823352342.

243253328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 83685904 + 159567424 = 9148^2 + 12632^2 .

It is a junction number, because it is equal to n+sod(n) for n = 243253294 and 243253303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184751 + ... + 186062.

Almost surely, 2^243253328 is an apocalyptic number.

It is an amenable number.

243253328 is a deficient number, since it is larger than the sum of its proper divisors (239546500).

243253328 is a wasteful number, since it uses less digits than its factorization.

243253328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370862 (or 370856 counting only the distinct ones).

The product of its digits is 34560, while the sum is 32.

The square root of 243253328 is about 15596.5806508991. The cubic root of 243253328 is about 624.2419207705.

The spelling of 243253328 in words is "two hundred forty-three million, two hundred fifty-three thousand, three hundred twenty-eight".