199466688 has 56 divisors (see below), whose sum is σ = 529986240. Its totient is φ = 66208000.

The previous prime is 199466671. The next prime is 199466717. The reversal of 199466688 is 886664991.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46123 + ... + 50261.

It is an arithmetic number, because the mean of its divisors is an integer number (9464040).

Almost surely, 2^199466688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199466688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264993120).

199466688 is an abundant number, since it is smaller than the sum of its proper divisors (330519552).

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

199466688 is a wasteful number, since it uses less digits than its factorization.

199466688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4405 (or 4395 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 57.

The square root of 199466688 is about 14123.2676105779. The cubic root of 199466688 is about 584.2832803442.

The spelling of 199466688 in words is "one hundred ninety-nine million, four hundred sixty-six thousand, six hundred eighty-eight".