2160821084 has 24 divisors (see below), whose sum is σ = 3800950608. Its totient is φ = 1074850560.

The previous prime is 2160821083. The next prime is 2160821093. The reversal of 2160821084 is 4801280612.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2160821084.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2160821083) by changing a digit.

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, 727787 + ... + 730749.

It is an arithmetic number, because the mean of its divisors is an integer number (158372942).

Almost surely, 2^2160821084 is an apocalyptic number.

It is an amenable number.

2160821084 is a deficient number, since it is larger than the sum of its proper divisors (1640129524).

2160821084 is a wasteful number, since it uses less digits than its factorization.

2160821084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3845 (or 3843 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 2160821084 is about 46484.6327725626. The cubic root of 2160821084 is about 1292.8245869592.

The spelling of 2160821084 in words is "two billion, one hundred sixty million, eight hundred twenty-one thousand, eighty-four".