20224624420 has 192 divisors, whose sum is σ = 57963290112. Its totient is φ = 5723136000.

The previous prime is 20224624393. The next prime is 20224624421. The reversal of 20224624420 is 2442642202.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (20224624421) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1212940 + ... + 1229500.

It is an arithmetic number, because the mean of its divisors is an integer number (301892136).

Almost surely, 2^20224624420 is an apocalyptic number.

20224624420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20224624420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28981645056).

20224624420 is an abundant number, since it is smaller than the sum of its proper divisors (37738665692).

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

20224624420 is a wasteful number, since it uses less digits than its factorization.

20224624420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16662 (or 16660 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

The spelling of 20224624420 in words is "twenty billion, two hundred twenty-four million, six hundred twenty-four thousand, four hundred twenty".