199848378 has 16 divisors (see below), whose sum is σ = 399835296. Its totient is φ = 66593040.

The previous prime is 199848353. The next prime is 199848409. The reversal of 199848378 is 873848991.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 31168 + ... + 37028.

It is an arithmetic number, because the mean of its divisors is an integer number (24989706).

Almost surely, 2^199848378 is an apocalyptic number.

199848378 is an abundant number, since it is smaller than the sum of its proper divisors (199986918).

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

199848378 is a wasteful number, since it uses less digits than its factorization.

199848378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11549.

The product of its digits is 3483648, while the sum is 57.

The square root of 199848378 is about 14136.7739601367. The cubic root of 199848378 is about 584.6557284760.

The spelling of 199848378 in words is "one hundred ninety-nine million, eight hundred forty-eight thousand, three hundred seventy-eight".