243124272 has 30 divisors (see below), whose sum is σ = 680410692. Its totient is φ = 81041376.

The previous prime is 243124267. The next prime is 243124319. The reversal of 243124272 is 272421342.

243124272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 844038 + ... + 844325.

Almost surely, 2^243124272 is an apocalyptic number.

It is an amenable number.

243124272 is an abundant number, since it is smaller than the sum of its proper divisors (437286420).

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

243124272 is a wasteful number, since it uses less digits than its factorization.

243124272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688377 (or 1688368 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 243124272 is about 15592.4427848878. The cubic root of 243124272 is about 624.1315058142.

The spelling of 243124272 in words is "two hundred forty-three million, one hundred twenty-four thousand, two hundred seventy-two".