199119970 has 32 divisors (see below), whose sum is σ = 427431168. Its totient is φ = 65300928.

The previous prime is 199119961. The next prime is 199120007. The reversal of 199119970 is 79911991.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 199119970.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60229 + ... + 63448.

It is an arithmetic number, because the mean of its divisors is an integer number (13357224).

Almost surely, 2^199119970 is an apocalyptic number.

199119970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199119970 is an abundant number, since it is smaller than the sum of its proper divisors (228311198).

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

199119970 is a wasteful number, since it uses less digits than its factorization.

199119970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123714.

The product of its (nonzero) digits is 45927, while the sum is 46.

The square root of 199119970 is about 14110.9875628887. The cubic root of 199119970 is about 583.9445453849.

The spelling of 199119970 in words is "one hundred ninety-nine million, one hundred nineteen thousand, nine hundred seventy".