243423030540 has 48 divisors (see below), whose sum is σ = 682234408800. Its totient is φ = 64850910720.

The previous prime is 243423030527. The next prime is 243423030577. The reversal of 243423030540 is 45030324342.

243423030540 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 243423030498 and 243423030507.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1870831 + ... + 1996710.

It is an arithmetic number, because the mean of its divisors is an integer number (14213216850).

Almost surely, 2^243423030540 is an apocalyptic number.

243423030540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243423030540 is an abundant number, since it is smaller than the sum of its proper divisors (438811378260).

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

243423030540 is a wasteful number, since it uses less digits than its factorization.

243423030540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3868602 (or 3868600 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 30.

Adding to 243423030540 its reverse (45030324342), we get a palindrome (288453354882).

The spelling of 243423030540 in words is "two hundred forty-three billion, four hundred twenty-three million, thirty thousand, five hundred forty".