243300030 has 32 divisors (see below), whose sum is σ = 585270144. Its totient is φ = 64730016.

The previous prime is 243300017. The next prime is 243300037. The reversal of 243300030 is 30003342.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 243299982 and 243300009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243300037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4137 + ... + 22443.

It is an arithmetic number, because the mean of its divisors is an integer number (18289692).

Almost surely, 2^243300030 is an apocalyptic number.

243300030 is an abundant number, since it is smaller than the sum of its proper divisors (341970114).

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

243300030 is a wasteful number, since it uses less digits than its factorization.

243300030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18760.

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 243300030 is about 15598.0777661864. The cubic root of 243300030 is about 624.2818674397.

Adding to 243300030 its reverse (30003342), we get a palindrome (273303372).

The spelling of 243300030 in words is "two hundred forty-three million, three hundred thousand, thirty".