199000418 has 4 divisors (see below), whose sum is σ = 298500630. Its totient is φ = 99500208.

The previous prime is 199000411. The next prime is 199000421. The reversal of 199000418 is 814000991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 814000991 = 109 ⋅7467899.

It can be written as a sum of positive squares in only one way, i.e., 197318209 + 1682209 = 14047^2 + 1297^2 .

It is not an unprimeable number, because it can be changed into a prime (199000411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49750103 + ... + 49750106.

Almost surely, 2^199000418 is an apocalyptic number.

199000418 is a deficient number, since it is larger than the sum of its proper divisors (99500212).

199000418 is an equidigital number, since it uses as much as digits as its factorization.

199000418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99500211.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 199000418 is about 14106.7507952753. The cubic root of 199000418 is about 583.8276548580.

The spelling of 199000418 in words is "one hundred ninety-nine million, four hundred eighteen", and thus it is an aban number.