199000980 has 72 divisors (see below), whose sum is σ = 639154152. Its totient is φ = 49944576.

The previous prime is 199000957. The next prime is 199000981. The reversal of 199000980 is 89000991.

199000980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 89756676 + 109244304 = 9474^2 + 10452^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199000981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29457 + ... + 35576.

It is an arithmetic number, because the mean of its divisors is an integer number (8877141).

Almost surely, 2^199000980 is an apocalyptic number.

199000980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199000980 is an abundant number, since it is smaller than the sum of its proper divisors (440153172).

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

199000980 is a wasteful number, since it uses less digits than its factorization.

199000980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65065 (or 65060 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 36.

The square root of 199000980 is about 14106.7707148022. The cubic root of 199000980 is about 583.8282044562.

The spelling of 199000980 in words is "one hundred ninety-nine million, nine hundred eighty", and thus it is an aban number.