2168144084 has 12 divisors (see below), whose sum is σ = 3794770644. Its totient is φ = 1083923904.

The previous prime is 2168144071. The next prime is 2168144119. The reversal of 2168144084 is 4804418612.

It can be written as a sum of positive squares in 2 ways, for example, as 341436484 + 1826707600 = 18478^2 + 42740^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14 + ... + 65850.

It is an arithmetic number, because the mean of its divisors is an integer number (316230887).

Almost surely, 2^2168144084 is an apocalyptic number.

It is an amenable number.

2168144084 is a deficient number, since it is larger than the sum of its proper divisors (1626626560).

2168144084 is a wasteful number, since it uses less digits than its factorization.

2168144084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74074 (or 74072 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 2168144084 is about 46563.3341160188. The cubic root of 2168144084 is about 1294.2833965586.

The spelling of 2168144084 in words is "two billion, one hundred sixty-eight million, one hundred forty-four thousand, eighty-four".