199990080 has 224 divisors, whose sum is σ = 716889600. Its totient is φ = 52475904.

The previous prime is 199990027. The next prime is 199990081. The reversal of 199990080 is 80099991.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199990081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 682414 + ... + 682706.

It is an arithmetic number, because the mean of its divisors is an integer number (3200400).

Almost surely, 2^199990080 is an apocalyptic number.

199990080 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 199990080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (358444800).

199990080 is an abundant number, since it is smaller than the sum of its proper divisors (516899520).

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

199990080 is a wasteful number, since it uses less digits than its factorization.

199990080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 45.

The square root of 199990080 is about 14141.7848944184. The cubic root of 199990080 is about 584.7938787307.

The spelling of 199990080 in words is "one hundred ninety-nine million, nine hundred ninety thousand, eighty".