20000343436 has 12 divisors (see below), whose sum is σ = 35136791928. Its totient is φ = 9961260032.

The previous prime is 20000343431. The next prime is 20000343449. The reversal of 20000343436 is 63434300002.

It is a self number, because there is not a number n which added to its sum of digits gives 20000343436.

It is not an unprimeable number, because it can be changed into a prime (20000343431) 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 3 ways as a sum of consecutive naturals, for example, 9726766 + ... + 9728821.

It is an arithmetic number, because the mean of its divisors is an integer number (2928065994).

Almost surely, 2^20000343436 is an apocalyptic number.

It is an amenable number.

20000343436 is a deficient number, since it is larger than the sum of its proper divisors (15136448492).

20000343436 is a wasteful number, since it uses less digits than its factorization.

20000343436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19455848 (or 19455846 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 20000343436 its reverse (63434300002), we get a palindrome (83434643438).

The spelling of 20000343436 in words is "twenty billion, three hundred forty-three thousand, four hundred thirty-six".