1940108986 has 16 divisors (see below), whose sum is σ = 3164631336. Its totient is φ = 888316416.

The previous prime is 1940108957. The next prime is 1940108987. The reversal of 1940108986 is 6898010491.

It can be written as a sum of positive squares in 4 ways, for example, as 1932921225 + 7187761 = 43965^2 + 2681^2 .

It is not an unprimeable number, because it can be changed into a prime (1940108987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 769851 + ... + 772366.

Almost surely, 2^1940108986 is an apocalyptic number.

1940108986 is a deficient number, since it is larger than the sum of its proper divisors (1224522350).

1940108986 is a wasteful number, since it uses less digits than its factorization.

1940108986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542273.

The product of its (nonzero) digits is 124416, while the sum is 46.

The square root of 1940108986 is about 44046.6682735482. The cubic root of 1940108986 is about 1247.2170591368.

The spelling of 1940108986 in words is "one billion, nine hundred forty million, one hundred eight thousand, nine hundred eighty-six".