2196587812 has 24 divisors (see below), whose sum is σ = 3916977176. Its totient is φ = 1077608448.

The previous prime is 2196587797. The next prime is 2196587821. The reversal of 2196587812 is 2187856912.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1290496 + 2195297316 = 1136^2 + 46854^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36868 + ... + 75844.

Almost surely, 2^2196587812 is an apocalyptic number.

It is an amenable number.

2196587812 is a deficient number, since it is larger than the sum of its proper divisors (1720389364).

2196587812 is a wasteful number, since it uses less digits than its factorization.

2196587812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39247 (or 39245 counting only the distinct ones).

The product of its digits is 483840, while the sum is 49.

The square root of 2196587812 is about 46867.7694370022. The cubic root of 2196587812 is about 1299.9186955069.

The spelling of 2196587812 in words is "two billion, one hundred ninety-six million, five hundred eighty-seven thousand, eight hundred twelve".