20424303224 has 64 divisors (see below), whose sum is σ = 41721704640. Its totient is φ = 9317145600.

The previous prime is 20424303199. The next prime is 20424303233. The reversal of 20424303224 is 42230342402.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 20424303193 and 20424303202.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7803164 + ... + 7805780.

It is an arithmetic number, because the mean of its divisors is an integer number (651901635).

Almost surely, 2^20424303224 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 20424303224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20860852320).

20424303224 is an abundant number, since it is smaller than the sum of its proper divisors (21297401416).

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

20424303224 is a wasteful number, since it uses less digits than its factorization.

20424303224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3480 (or 3476 counting only the distinct ones).

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

Adding to 20424303224 its reverse (42230342402), we get a palindrome (62654645626).

The spelling of 20424303224 in words is "twenty billion, four hundred twenty-four million, three hundred three thousand, two hundred twenty-four".