243342224020 has 24 divisors (see below), whose sum is σ = 584021337984. Its totient is φ = 83431619616.

The previous prime is 243342224011. The next prime is 243342224033. The reversal of 243342224020 is 20422243342.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 243342224020.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 869079232 + ... + 869079511.

It is an arithmetic number, because the mean of its divisors is an integer number (24334222416).

Almost surely, 2^243342224020 is an apocalyptic number.

243342224020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243342224020 is an abundant number, since it is smaller than the sum of its proper divisors (340679113964).

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

243342224020 is a wasteful number, since it uses less digits than its factorization.

243342224020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738158759 (or 1738158757 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 243342224020 its reverse (20422243342), we get a palindrome (263764467362).

The spelling of 243342224020 in words is "two hundred forty-three billion, three hundred forty-two million, two hundred twenty-four thousand, twenty".