208116004 has 6 divisors (see below), whose sum is σ = 364203014. Its totient is φ = 104058000.

The previous prime is 208115993. The next prime is 208116017. The reversal of 208116004 is 400611802.

It can be written as a sum of positive squares in only one way, i.e., 203062500 + 5053504 = 14250^2 + 2248^2 .

It is a super-2 number, since 2×208116004² = 86624542241856032, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 26014497 + ... + 26014504.

Almost surely, 2^208116004 is an apocalyptic number.

It is an amenable number.

208116004 is a deficient number, since it is larger than the sum of its proper divisors (156087010).

208116004 is a wasteful number, since it uses less digits than its factorization.

208116004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52029005 (or 52029003 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 208116004 is about 14426.2262563707. The cubic root of 208116004 is about 592.6093410936.

Adding to 208116004 its reverse (400611802), we get a palindrome (608727806).

The spelling of 208116004 in words is "two hundred eight million, one hundred sixteen thousand, four".