849181996 has 24 divisors (see below), whose sum is σ = 1639419264. Its totient is φ = 382369920.

The previous prime is 849181987. The next prime is 849181999. The reversal of 849181996 is 699181948.

It is a super-2 number, since 2×849181996² = 1442220124661088032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (849181999) 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 7 ways as a sum of consecutive naturals, for example, 197020 + ... + 201283.

It is an arithmetic number, because the mean of its divisors is an integer number (68309136).

Almost surely, 2^849181996 is an apocalyptic number.

It is an amenable number.

849181996 is a deficient number, since it is larger than the sum of its proper divisors (790237268).

849181996 is a wasteful number, since it uses less digits than its factorization.

849181996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398361 (or 398359 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 55.

The square root of 849181996 is about 29140.7274445920. The cubic root of 849181996 is about 946.9642693792.

The spelling of 849181996 in words is "eight hundred forty-nine million, one hundred eighty-one thousand, nine hundred ninety-six".