243540084 has 24 divisors (see below), whose sum is σ = 570814720. Its totient is φ = 80815104.

The previous prime is 243540049. The next prime is 243540091. The reversal of 243540084 is 480045342.

243540084 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×243540084³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42829 + ... + 48180.

Almost surely, 2^243540084 is an apocalyptic number.

It is an amenable number.

243540084 is an abundant number, since it is smaller than the sum of its proper divisors (327274636).

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

243540084 is a wasteful number, since it uses less digits than its factorization.

243540084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91239 (or 91237 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 243540084 is about 15605.7708556803. The cubic root of 243540084 is about 624.4871175844.

The spelling of 243540084 in words is "two hundred forty-three million, five hundred forty thousand, eighty-four".