20104444320 has 192 divisors, whose sum is σ = 65264040576. Its totient is φ = 5198376960.

The previous prime is 20104444309. The next prime is 20104444403. The reversal of 20104444320 is 2344440102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5628135 + ... + 5631705.

It is an arithmetic number, because the mean of its divisors is an integer number (339916878).

Almost surely, 2^20104444320 is an apocalyptic number.

20104444320 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 20104444320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32632020288).

20104444320 is an abundant number, since it is smaller than the sum of its proper divisors (45159596256).

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

20104444320 is a wasteful number, since it uses less digits than its factorization.

20104444320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3943 (or 3935 counting only the distinct ones).

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

Adding to 20104444320 its reverse (2344440102), we get a palindrome (22448884422).

The spelling of 20104444320 in words is "twenty billion, one hundred four million, four hundred forty-four thousand, three hundred twenty".