199454108 has 18 divisors (see below), whose sum is σ = 406031976. Its totient is φ = 85480248.

The previous prime is 199454107. The next prime is 199454111. The reversal of 199454108 is 801454991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199454107) 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 5 ways as a sum of consecutive naturals, for example, 508616 + ... + 509007.

It is an arithmetic number, because the mean of its divisors is an integer number (22557332).

Almost surely, 2^199454108 is an apocalyptic number.

It is an amenable number.

199454108 is an abundant number, since it is smaller than the sum of its proper divisors (206577868).

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

199454108 is a wasteful number, since it uses less digits than its factorization.

199454108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017641 (or 1017632 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 199454108 is about 14122.8222391985. The cubic root of 199454108 is about 584.2709968592.

The spelling of 199454108 in words is "one hundred ninety-nine million, four hundred fifty-four thousand, one hundred eight".