20424223330 has 64 divisors (see below), whose sum is σ = 43866966528. Its totient is φ = 6694364160.

The previous prime is 20424223319. The next prime is 20424223361. The reversal of 20424223330 is 3332242402.

It is a junction number, because it is equal to n+sod(n) for n = 20424223295 and 20424223304.

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, 5428650 + ... + 5432410.

It is an arithmetic number, because the mean of its divisors is an integer number (685421352).

Almost surely, 2^20424223330 is an apocalyptic number.

20424223330 is an abundant number, since it is smaller than the sum of its proper divisors (23442743198).

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

20424223330 is a wasteful number, since it uses less digits than its factorization.

20424223330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7171.

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 20424223330 its reverse (3332242402), we get a palindrome (23756465732).

The spelling of 20424223330 in words is "twenty billion, four hundred twenty-four million, two hundred twenty-three thousand, three hundred thirty".