20444413020 has 96 divisors (see below), whose sum is σ = 58811054400. Its totient is φ = 5303408640.

The previous prime is 20444413019. The next prime is 20444413021. The reversal of 20444413020 is 2031444402.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20444413019) and next prime (20444413021).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20444413021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 846634 + ... + 870446.

It is an arithmetic number, because the mean of its divisors is an integer number (612615150).

Almost surely, 2^20444413020 is an apocalyptic number.

20444413020 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 20444413020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29405527200).

20444413020 is an abundant number, since it is smaller than the sum of its proper divisors (38366641380).

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

20444413020 is a wasteful number, since it uses less digits than its factorization.

20444413020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24215 (or 24213 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 20444413020 its reverse (2031444402), we get a palindrome (22475857422).

The spelling of 20444413020 in words is "twenty billion, four hundred forty-four million, four hundred thirteen thousand, twenty".