20204404000 has 192 divisors, whose sum is σ = 54531719424. Its totient is φ = 7296000000.

The previous prime is 20204403991. The next prime is 20204404007. The reversal of 20204404000 is 40440202.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (20204404007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6642480 + ... + 6645520.

It is an arithmetic number, because the mean of its divisors is an integer number (284019372).

Almost surely, 2^20204404000 is an apocalyptic number.

20204404000 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 20204404000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27265859712).

20204404000 is an abundant number, since it is smaller than the sum of its proper divisors (34327315424).

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

20204404000 is a wasteful number, since it uses less digits than its factorization.

20204404000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3228 (or 3210 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 20204404000 its reverse (40440202), we get a palindrome (20244844202).

The spelling of 20204404000 in words is "twenty billion, two hundred four million, four hundred four thousand".