208204104490 has 48 divisors (see below), whose sum is σ = 391380428664. Its totient is φ = 79717015040.

The previous prime is 208204104469. The next prime is 208204104509. The reversal of 208204104490 is 94401402802.

208204104490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 7284110409 + 200919994081 = 85347^2 + 448241^2 .

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 774084 + ... + 1007776.

Almost surely, 2^208204104490 is an apocalyptic number.

208204104490 is a deficient number, since it is larger than the sum of its proper divisors (183176324174).

208204104490 is a wasteful number, since it uses less digits than its factorization.

208204104490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233835 (or 233794 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The spelling of 208204104490 in words is "two hundred eight billion, two hundred four million, one hundred four thousand, four hundred ninety".