243219948220 has 24 divisors (see below), whose sum is σ = 513583787808. Its totient is φ = 96750475200.

The previous prime is 243219948163. The next prime is 243219948229. The reversal of 243219948220 is 22849912342.

243219948220 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 (243219948229) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 33590296 + ... + 33597535.

It is an arithmetic number, because the mean of its divisors is an integer number (21399324492).

Almost surely, 2^243219948220 is an apocalyptic number.

243219948220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243219948220 is an abundant number, since it is smaller than the sum of its proper divisors (270363839588).

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

243219948220 is a wasteful number, since it uses less digits than its factorization.

243219948220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67188021 (or 67188019 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 243219948220 in words is "two hundred forty-three billion, two hundred nineteen million, nine hundred forty-eight thousand, two hundred twenty".