20041440100 has 72 divisors (see below), whose sum is σ = 47913558336. Its totient is φ = 7215600000.

The previous prime is 20041440079. The next prime is 20041440109. The reversal of 20041440100 is 104414002.

It is not an unprimeable number, because it can be changed into a prime (20041440109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20905 + ... + 201295.

It is an arithmetic number, because the mean of its divisors is an integer number (665466088).

Almost surely, 2^20041440100 is an apocalyptic number.

20041440100 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 20041440100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23956779168).

20041440100 is an abundant number, since it is smaller than the sum of its proper divisors (27872118236).

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

20041440100 is a wasteful number, since it uses less digits than its factorization.

20041440100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180517 (or 180510 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20041440100 its reverse (104414002), we get a palindrome (20145854102).

The spelling of 20041440100 in words is "twenty billion, forty-one million, four hundred forty thousand, one hundred".