20340140204 has 12 divisors (see below), whose sum is σ = 35636497344. Its totient is φ = 10158283824.

The previous prime is 20340140179. The next prime is 20340140207. The reversal of 20340140204 is 40204104302.

It is not an unprimeable number, because it can be changed into a prime (20340140207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2942687 + ... + 2949590.

It is an arithmetic number, because the mean of its divisors is an integer number (2969708112).

Almost surely, 2^20340140204 is an apocalyptic number.

It is an amenable number.

20340140204 is a deficient number, since it is larger than the sum of its proper divisors (15296357140).

20340140204 is a wasteful number, since it uses less digits than its factorization.

20340140204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5893144 (or 5893142 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20340140204 its reverse (40204104302), we get a palindrome (60544244506).

The spelling of 20340140204 in words is "twenty billion, three hundred forty million, one hundred forty thousand, two hundred four".