1940191108 has 6 divisors (see below), whose sum is σ = 3395334446. Its totient is φ = 970095552.

The previous prime is 1940191103. The next prime is 1940191109. The reversal of 1940191108 is 8011910491.

It can be written as a sum of positive squares in only one way, i.e., 1227941764 + 712249344 = 35042^2 + 26688^2 .

It is not an unprimeable number, because it can be changed into a prime (1940191103) 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 as a sum of consecutive naturals, namely, 242523885 + ... + 242523892.

Almost surely, 2^1940191108 is an apocalyptic number.

It is an amenable number.

1940191108 is a deficient number, since it is larger than the sum of its proper divisors (1455143338).

1940191108 is a wasteful number, since it uses less digits than its factorization.

1940191108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485047781 (or 485047779 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 34.

The square root of 1940191108 is about 44047.6004794813. The cubic root of 1940191108 is about 1247.2346565184.

The spelling of 1940191108 in words is "one billion, nine hundred forty million, one hundred ninety-one thousand, one hundred eight".