199071080 has 128 divisors (see below), whose sum is σ = 512265600. Its totient is φ = 69092352.

The previous prime is 199071077. The next prime is 199071143. The reversal of 199071080 is 80170991.

It is a self number, because there is not a number n which added to its sum of digits gives 199071080.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 648287 + ... + 648593.

It is an arithmetic number, because the mean of its divisors is an integer number (4002075).

Almost surely, 2^199071080 is an apocalyptic number.

199071080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199071080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256132800).

199071080 is an abundant number, since it is smaller than the sum of its proper divisors (313194520).

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

199071080 is a wasteful number, since it uses less digits than its factorization.

199071080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403 (or 399 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 35.

The square root of 199071080 is about 14109.2551185383. The cubic root of 199071080 is about 583.8967494327.

The spelling of 199071080 in words is "one hundred ninety-nine million, seventy-one thousand, eighty".