20043350404 has 144 divisors (see below), whose sum is σ = 47745016704. Its totient is φ = 7177927680.

The previous prime is 20043350321. The next prime is 20043350407. The reversal of 20043350404 is 40405334002.

It is not an unprimeable number, because it can be changed into a prime (20043350407) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2472582 + ... + 2480674.

It is an arithmetic number, because the mean of its divisors is an integer number (331562616).

Almost surely, 2^20043350404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20043350404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23872508352).

20043350404 is an abundant number, since it is smaller than the sum of its proper divisors (27701666300).

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

20043350404 is a wasteful number, since it uses less digits than its factorization.

20043350404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8186 (or 8173 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

Adding to 20043350404 its reverse (40405334002), we get a palindrome (60448684406).

The spelling of 20043350404 in words is "twenty billion, forty-three million, three hundred fifty thousand, four hundred four".