1999108 has 12 divisors (see below), whose sum is σ = 3511872. Its totient is φ = 995720.

The previous prime is 1999103. The next prime is 1999111. The reversal of 1999108 is 8019991.

1999108 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1999103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 441 + ... + 2047.

It is an arithmetic number, because the mean of its divisors is an integer number (292656).

2^1999108 is an apocalyptic number.

It is an amenable number.

1999108 is a deficient number, since it is larger than the sum of its proper divisors (1512764).

1999108 is a wasteful number, since it uses less digits than its factorization.

1999108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1922 (or 1920 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 37.

The square root of 1999108 is about 1413.8981575771. The cubic root of 1999108 is about 125.9733713779.

The spelling of 1999108 in words is "one million, nine hundred ninety-nine thousand, one hundred eight".