20244204040 has 64 divisors (see below), whose sum is σ = 47127168000. Its totient is φ = 7818405120.

The previous prime is 20244204031. The next prime is 20244204047. The reversal of 20244204040 is 4040244202.

It is not an unprimeable number, because it can be changed into a prime (20244204047) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 525766 + ... + 562954.

It is an arithmetic number, because the mean of its divisors is an integer number (736362000).

Almost surely, 2^20244204040 is an apocalyptic number.

20244204040 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 20244204040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23563584000).

20244204040 is an abundant number, since it is smaller than the sum of its proper divisors (26882963960).

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

20244204040 is a wasteful number, since it uses less digits than its factorization.

20244204040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37670 (or 37666 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 20244204040 its reverse (4040244202), we get a palindrome (24284448242).

The spelling of 20244204040 in words is "twenty billion, two hundred forty-four million, two hundred four thousand, forty".