2170949836 has 36 divisors (see below), whose sum is σ = 4249500696. Its totient is φ = 961849600.

The previous prime is 2170949819. The next prime is 2170949863. The reversal of 2170949836 is 6389490712.

It is a self number, because there is not a number n which added to its sum of digits gives 2170949836.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1978440 + ... + 1979536.

It is an arithmetic number, because the mean of its divisors is an integer number (118041686).

Almost surely, 2^2170949836 is an apocalyptic number.

It is an amenable number.

2170949836 is a deficient number, since it is larger than the sum of its proper divisors (2078550860).

2170949836 is a wasteful number, since it uses less digits than its factorization.

2170949836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2250 (or 1151 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 2170949836 is about 46593.4527160201. The cubic root of 2170949836 is about 1294.8414580089.

The spelling of 2170949836 in words is "two billion, one hundred seventy million, nine hundred forty-nine thousand, eight hundred thirty-six".