199808466 has 32 divisors (see below), whose sum is σ = 469482048. Its totient is φ = 55890240.

The previous prime is 199808447. The next prime is 199808467. The reversal of 199808466 is 664808991.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (199808467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115581 + ... + 117296.

It is an arithmetic number, because the mean of its divisors is an integer number (14671314).

Almost surely, 2^199808466 is an apocalyptic number.

199808466 is an abundant number, since it is smaller than the sum of its proper divisors (269673582).

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

199808466 is a wasteful number, since it uses less digits than its factorization.

199808466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232906.

The product of its (nonzero) digits is 746496, while the sum is 51.

The square root of 199808466 is about 14135.3622521674. The cubic root of 199808466 is about 584.6168050795.

The spelling of 199808466 in words is "one hundred ninety-nine million, eight hundred eight thousand, four hundred sixty-six".