243724230 has 48 divisors (see below), whose sum is σ = 635819184. Its totient is φ = 64774080.

The previous prime is 243724199. The next prime is 243724231. The reversal of 243724230 is 32427342.

It is a super-3 number, since 3×243724230³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243724194 and 243724203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243724231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23220 + ... + 32040.

It is an arithmetic number, because the mean of its divisors is an integer number (13246233).

Almost surely, 2^243724230 is an apocalyptic number.

243724230 is an abundant number, since it is smaller than the sum of its proper divisors (392094954).

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

243724230 is a wasteful number, since it uses less digits than its factorization.

243724230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9141 (or 9138 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 27.

The square root of 243724230 is about 15611.6696736768. The cubic root of 243724230 is about 624.6444740671.

The spelling of 243724230 in words is "two hundred forty-three million, seven hundred twenty-four thousand, two hundred thirty".