199385950 has 24 divisors (see below), whose sum is σ = 371362392. Its totient is φ = 79645920.

The previous prime is 199385869. The next prime is 199385971. The reversal of 199385950 is 59583991.

It is a happy number.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 199385894 and 199385903.

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, 41577 + ... + 46123.

It is an arithmetic number, because the mean of its divisors is an integer number (15473433).

Almost surely, 2^199385950 is an apocalyptic number.

199385950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199385950 is a deficient number, since it is larger than the sum of its proper divisors (171976442).

199385950 is a wasteful number, since it uses less digits than its factorization.

199385950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5436 (or 5431 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 49.

The square root of 199385950 is about 14120.4089884111. The cubic root of 199385950 is about 584.2044363858.

The spelling of 199385950 in words is "one hundred ninety-nine million, three hundred eighty-five thousand, nine hundred fifty".