20443224230 has 144 divisors (see below), whose sum is σ = 45856483344. Its totient is φ = 6468232320.

The previous prime is 20443224227. The next prime is 20443224239. The reversal of 20443224230 is 3242234402.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20443224230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20443224239) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 102729671 + ... + 102729869.

It is an arithmetic number, because the mean of its divisors is an integer number (318447801).

Almost surely, 2^20443224230 is an apocalyptic number.

20443224230 is an abundant number, since it is smaller than the sum of its proper divisors (25413259114).

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

20443224230 is a wasteful number, since it uses less digits than its factorization.

20443224230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467 (or 249 counting only the distinct ones).

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

Adding to 20443224230 its reverse (3242234402), we get a palindrome (23685458632).

The spelling of 20443224230 in words is "twenty billion, four hundred forty-three million, two hundred twenty-four thousand, two hundred thirty".