199880688 has 80 divisors (see below), whose sum is σ = 591676416. Its totient is φ = 56958720.

The previous prime is 199880687. The next prime is 199880689. The reversal of 199880688 is 886088991.

It is an interprime number because it is at equal distance from previous prime (199880687) and next prime (199880689).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199880687) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 218953 + ... + 219863.

Almost surely, 2^199880688 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 199880688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295838208).

199880688 is an abundant number, since it is smaller than the sum of its proper divisors (391795728).

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

199880688 is a wasteful number, since it uses less digits than its factorization.

199880688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582 (or 1576 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 57.

The square root of 199880688 is about 14137.9166782097. The cubic root of 199880688 is about 584.6872343754.

The spelling of 199880688 in words is "one hundred ninety-nine million, eight hundred eighty thousand, six hundred eighty-eight".