20404040002 has 32 divisors (see below), whose sum is σ = 32149353600. Its totient is φ = 9693720960.

The previous prime is 20404039991. The next prime is 20404040003. The reversal of 20404040002 is 20004040402.

20404040002 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (20404040003) 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, 4508913 + ... + 4513435.

It is an arithmetic number, because the mean of its divisors is an integer number (1004667300).

Almost surely, 2^20404040002 is an apocalyptic number.

20404040002 is a deficient number, since it is larger than the sum of its proper divisors (11745313598).

20404040002 is a wasteful number, since it uses less digits than its factorization.

20404040002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5178.

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

Adding to 20404040002 its reverse (20004040402), we get a palindrome (40408080404).

The spelling of 20404040002 in words is "twenty billion, four hundred four million, forty thousand, two".