20000043604 has 12 divisors (see below), whose sum is σ = 36206975700. Its totient is φ = 9655193408.

The previous prime is 20000043593. The next prime is 20000043631. The reversal of 20000043604 is 40634000002.

It can be written as a sum of positive squares in 2 ways, for example, as 7623036100 + 12377007504 = 87310^2 + 111252^2 .

It is a congruent number.

It is an unprimeable number.

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, 86206969 + ... + 86207200.

It is an arithmetic number, because the mean of its divisors is an integer number (3017247975).

Almost surely, 2^20000043604 is an apocalyptic number.

It is an amenable number.

20000043604 is a deficient number, since it is larger than the sum of its proper divisors (16206932096).

20000043604 is a wasteful number, since it uses less digits than its factorization.

20000043604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172414202 (or 172414200 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20000043604 its reverse (40634000002), we get a palindrome (60634043606).

The spelling of 20000043604 in words is "twenty billion, forty-three thousand, six hundred four".