199950318 has 24 divisors (see below), whose sum is σ = 433501848. Its totient is φ = 66607632.

The previous prime is 199950287. The next prime is 199950323. The reversal of 199950318 is 813059991.

It is a super-2 number, since 2×199950318² = 79960259336602248, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39880 + ... + 44612.

It is an arithmetic number, because the mean of its divisors is an integer number (18062577).

Almost surely, 2^199950318 is an apocalyptic number.

199950318 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

199950318 is an abundant number, since it is smaller than the sum of its proper divisors (233551530).

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

199950318 is a wasteful number, since it uses less digits than its factorization.

199950318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7088 (or 7085 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 45.

The square root of 199950318 is about 14140.3789906777. The cubic root of 199950318 is about 584.7551199493.

The spelling of 199950318 in words is "one hundred ninety-nine million, nine hundred fifty thousand, three hundred eighteen".