196404491208 has 32 divisors (see below), whose sum is σ = 491070764160. Its totient is φ = 65460225600.

The previous prime is 196404491207. The next prime is 196404491209. The reversal of 196404491208 is 802194404691.

It is an interprime number because it is at equal distance from previous prime (196404491207) and next prime (196404491209).

It is a super-3 number, since 3×196404491208³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (196404491207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292368 + ... + 691583.

It is an arithmetic number, because the mean of its divisors is an integer number (15345961380).

Almost surely, 2^196404491208 is an apocalyptic number.

It is an amenable number.

196404491208 is an abundant number, since it is smaller than the sum of its proper divisors (294666272952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

196404491208 is a wasteful number, since it uses less digits than its factorization.

196404491208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992277 (or 992273 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

Adding to 196404491208 its reverse (802194404691), we get a palindrome (998598895899).

The spelling of 196404491208 in words is "one hundred ninety-six billion, four hundred four million, four hundred ninety-one thousand, two hundred eight".