20104443402 has 16 divisors (see below), whose sum is σ = 40890394080. Its totient is φ = 6587896592.

The previous prime is 20104443397. The next prime is 20104443409. The reversal of 20104443402 is 20434440102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20104443409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28395753 + ... + 28396460.

It is an arithmetic number, because the mean of its divisors is an integer number (2555649630).

Almost surely, 2^20104443402 is an apocalyptic number.

20104443402 is an abundant number, since it is smaller than the sum of its proper divisors (20785950678).

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

20104443402 is a wasteful number, since it uses less digits than its factorization.

20104443402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56792277.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 20104443402 its reverse (20434440102), we get a palindrome (40538883504).

The spelling of 20104443402 in words is "twenty billion, one hundred four million, four hundred forty-three thousand, four hundred two".