199321080 has 64 divisors (see below), whose sum is σ = 683389440. Its totient is φ = 45558912.

The previous prime is 199321079. The next prime is 199321081. The reversal of 199321080 is 80123991.

It is an interprime number because it is at equal distance from previous prime (199321079) and next prime (199321081).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199321081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117804 + ... + 119483.

It is an arithmetic number, because the mean of its divisors is an integer number (10677960).

Almost surely, 2^199321080 is an apocalyptic number.

199321080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199321080 is an abundant number, since it is smaller than the sum of its proper divisors (484068360).

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

199321080 is a wasteful number, since it uses less digits than its factorization.

199321080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237308 (or 237304 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 199321080 is about 14118.1117717632. Note that the first 3 decimals coincide. The cubic root of 199321080 is about 584.1410727561.

It can be divided in two parts, 19932 and 1080, that added together give a palindrome (21012).

The spelling of 199321080 in words is "one hundred ninety-nine million, three hundred twenty-one thousand, eighty".