199080500 has 36 divisors (see below), whose sum is σ = 435481956. Its totient is φ = 79506000.

The previous prime is 199080487. The next prime is 199080503. The reversal of 199080500 is 5080991.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 6370576 + 192709924 = 2524^2 + 13882^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199080503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 315185 + ... + 315815.

It is an arithmetic number, because the mean of its divisors is an integer number (12096721).

Almost surely, 2^199080500 is an apocalyptic number.

199080500 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 199080500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217740978).

199080500 is an abundant number, since it is smaller than the sum of its proper divisors (236401456).

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

199080500 is an frugal number, since it uses more digits than its factorization.

199080500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 199080500 is about 14109.5889380237. The cubic root of 199080500 is about 583.9059592430.

The spelling of 199080500 in words is "one hundred ninety-nine million, eighty thousand, five hundred".