2175144944 has 40 divisors (see below), whose sum is σ = 4820822400. Its totient is φ = 931347648.

The previous prime is 2175144941. The next prime is 2175144949. The reversal of 2175144944 is 4494415712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2175144941) 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, 121907 + ... + 138605.

It is an arithmetic number, because the mean of its divisors is an integer number (120520560).

Almost surely, 2^2175144944 is an apocalyptic number.

It is an amenable number.

2175144944 is an abundant number, since it is smaller than the sum of its proper divisors (2645677456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2175144944 is a wasteful number, since it uses less digits than its factorization.

2175144944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17877 (or 17871 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 2175144944 is about 46638.4492023481. The cubic root of 2175144944 is about 1295.6749648482.

The spelling of 2175144944 in words is "two billion, one hundred seventy-five million, one hundred forty-four thousand, nine hundred forty-four".