20444442020 has 48 divisors (see below), whose sum is σ = 44036908608. Its totient is φ = 7968481920.

The previous prime is 20444442001. The next prime is 20444442041. The reversal of 20444442020 is 2024444402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 333827 + ... + 390293.

It is an arithmetic number, because the mean of its divisors is an integer number (917435596).

Almost surely, 2^20444442020 is an apocalyptic number.

20444442020 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 20444442020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22018454304).

20444442020 is an abundant number, since it is smaller than the sum of its proper divisors (23592466588).

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

20444442020 is a wasteful number, since it uses less digits than its factorization.

20444442020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56940 (or 56938 counting only the distinct ones).

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

Adding to 20444442020 its reverse (2024444402), we get a palindrome (22468886422).

The spelling of 20444442020 in words is "twenty billion, four hundred forty-four million, four hundred forty-two thousand, twenty".