20024444420 has 96 divisors (see below), whose sum is σ = 44102123520. Its totient is φ = 7628100480.

The previous prime is 20024444369. The next prime is 20024444443. The reversal of 20024444420 is 2444442002.

It is a self number, because there is not a number n which added to its sum of digits gives 20024444420.

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 31 ways as a sum of consecutive naturals, for example, 22677299 + ... + 22678181.

It is an arithmetic number, because the mean of its divisors is an integer number (459397120).

Almost surely, 2^20024444420 is an apocalyptic number.

20024444420 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 20024444420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22051061760).

20024444420 is an abundant number, since it is smaller than the sum of its proper divisors (24077679100).

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

20024444420 is a wasteful number, since it uses less digits than its factorization.

20024444420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465 (or 1463 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 20024444420 its reverse (2444442002), we get a palindrome (22468886422).

The spelling of 20024444420 in words is "twenty billion, twenty-four million, four hundred forty-four thousand, four hundred twenty".