243340230420 has 144 divisors (see below), whose sum is σ = 847996950528. Its totient is φ = 55329361920.

The previous prime is 243340230407. The next prime is 243340230421. The reversal of 243340230420 is 24032043342.

243340230420 is a `hidden beast` number, since 2 + 4 + 3 + 3 + 4 + 0 + 230 + 420 = 666.

243340230420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243340230421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 264909 + ... + 746228.

It is an arithmetic number, because the mean of its divisors is an integer number (5888867712).

Almost surely, 2^243340230420 is an apocalyptic number.

243340230420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243340230420 is an abundant number, since it is smaller than the sum of its proper divisors (604656720108).

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

243340230420 is a wasteful number, since it uses less digits than its factorization.

243340230420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011350 (or 1011345 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 243340230420 its reverse (24032043342), we get a palindrome (267372273762).

The spelling of 243340230420 in words is "two hundred forty-three billion, three hundred forty million, two hundred thirty thousand, four hundred twenty".