20183858404 has 6 divisors (see below), whose sum is σ = 35321752214. Its totient is φ = 10091929200.

The previous prime is 20183858381. The next prime is 20183858407. The reversal of 20183858404 is 40485838102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 16066069504 + 4117788900 = 126752^2 + 64170^2 .

It is not an unprimeable number, because it can be changed into a prime (20183858407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2522982297 + ... + 2522982304.

Almost surely, 2^20183858404 is an apocalyptic number.

It is an amenable number.

20183858404 is a deficient number, since it is larger than the sum of its proper divisors (15137893810).

20183858404 is a wasteful number, since it uses less digits than its factorization.

20183858404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5045964605 (or 5045964603 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 43.

The spelling of 20183858404 in words is "twenty billion, one hundred eighty-three million, eight hundred fifty-eight thousand, four hundred four".