243020043224 has 128 divisors (see below), whose sum is σ = 536221002240. Its totient is φ = 101113132032.

The previous prime is 243020043209. The next prime is 243020043269. The reversal of 243020043224 is 422340020342.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 243020043193 and 243020043202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104165162 + ... + 104167494.

It is an arithmetic number, because the mean of its divisors is an integer number (4189226580).

Almost surely, 2^243020043224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243020043224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268110501120).

243020043224 is an abundant number, since it is smaller than the sum of its proper divisors (293200959016).

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

243020043224 is a wasteful number, since it uses less digits than its factorization.

243020043224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2809 (or 2805 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 243020043224 its reverse (422340020342), we get a palindrome (665360063566).

The spelling of 243020043224 in words is "two hundred forty-three billion, twenty million, forty-three thousand, two hundred twenty-four".