20334224420 has 24 divisors (see below), whose sum is σ = 43694939904. Its totient is φ = 7944533856.

The previous prime is 20334224411. The next prime is 20334224423. The reversal of 20334224420 is 2442243302.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20334224420.

It is not an unprimeable number, because it can be changed into a prime (20334224423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11821364 + ... + 11823083.

It is an arithmetic number, because the mean of its divisors is an integer number (1820622496).

Almost surely, 2^20334224420 is an apocalyptic number.

20334224420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20334224420 is an abundant number, since it is smaller than the sum of its proper divisors (23360715484).

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

20334224420 is a wasteful number, since it uses less digits than its factorization.

20334224420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23644499 (or 23644497 counting only the distinct ones).

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

Adding to 20334224420 its reverse (2442243302), we get a palindrome (22776467722).

The spelling of 20334224420 in words is "twenty billion, three hundred thirty-four million, two hundred twenty-four thousand, four hundred twenty".