199419550 has 24 divisors (see below), whose sum is σ = 404641512. Its totient is φ = 72516000.

The previous prime is 199419511. The next prime is 199419557. The reversal of 199419550 is 55914991.

199419550 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 199419497 and 199419506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199419557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 180741 + ... + 181840.

It is an arithmetic number, because the mean of its divisors is an integer number (16860063).

Almost surely, 2^199419550 is an apocalyptic number.

199419550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199419550 is an abundant number, since it is smaller than the sum of its proper divisors (205221962).

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

199419550 is a wasteful number, since it uses less digits than its factorization.

199419550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362604 (or 362599 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 43.

The square root of 199419550 is about 14121.5987055291. The cubic root of 199419550 is about 584.2372507450.

The spelling of 199419550 in words is "one hundred ninety-nine million, four hundred nineteen thousand, five hundred fifty".