20330441430 has 96 divisors (see below), whose sum is σ = 54263564064. Its totient is φ = 4869116928.

The previous prime is 20330441377. The next prime is 20330441449. The reversal of 20330441430 is 3414403302.

It is a self number, because there is not a number n which added to its sum of digits gives 20330441430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 133402 + ... + 241778.

It is an arithmetic number, because the mean of its divisors is an integer number (565245459).

Almost surely, 2^20330441430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20330441430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27131782032).

20330441430 is an abundant number, since it is smaller than the sum of its proper divisors (33933122634).

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

20330441430 is a wasteful number, since it uses less digits than its factorization.

20330441430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108450 (or 108437 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20330441430 its reverse (3414403302), we get a palindrome (23744844732).

The spelling of 20330441430 in words is "twenty billion, three hundred thirty million, four hundred forty-one thousand, four hundred thirty".