243545330 has 32 divisors (see below), whose sum is σ = 513233280. Its totient is φ = 81463680.

The previous prime is 243545327. The next prime is 243545339. The reversal of 243545330 is 33545342.

It is a super-3 number, since 3×243545330³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243545293 and 243545302.

It is not an unprimeable number, because it can be changed into a prime (243545339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39560 + ... + 45299.

It is an arithmetic number, because the mean of its divisors is an integer number (16038540).

Almost surely, 2^243545330 is an apocalyptic number.

243545330 is an abundant number, since it is smaller than the sum of its proper divisors (269687950).

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

243545330 is a wasteful number, since it uses less digits than its factorization.

243545330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84914.

The product of its (nonzero) digits is 21600, while the sum is 29.

The square root of 243545330 is about 15605.9389336240. The cubic root of 243545330 is about 624.4916014950.

The spelling of 243545330 in words is "two hundred forty-three million, five hundred forty-five thousand, three hundred thirty".