1996185218 has 16 divisors (see below), whose sum is σ = 3007165824. Its totient is φ = 993806400.

The previous prime is 1996185211. The next prime is 1996185221. The reversal of 1996185218 is 8125816991.

It is not an unprimeable number, because it can be changed into a prime (1996185211) 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, 516971 + ... + 520817.

It is an arithmetic number, because the mean of its divisors is an integer number (187947864).

Almost surely, 2^1996185218 is an apocalyptic number.

1996185218 is a deficient number, since it is larger than the sum of its proper divisors (1010980606).

1996185218 is a wasteful number, since it uses less digits than its factorization.

1996185218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4897.

The product of its digits is 311040, while the sum is 50.

The square root of 1996185218 is about 44678.6886333966. The cubic root of 1996185218 is about 1259.1194860230.

The spelling of 1996185218 in words is "one billion, nine hundred ninety-six million, one hundred eighty-five thousand, two hundred eighteen".