2175172044 has 24 divisors (see below), whose sum is σ = 5079928560. Its totient is φ = 724410624.

The previous prime is 2175172001. The next prime is 2175172073. The reversal of 2175172044 is 4402715712.

2175172044 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2175171996 and 2175172014.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66729 + ... + 93824.

It is an arithmetic number, because the mean of its divisors is an integer number (211663690).

Almost surely, 2^2175172044 is an apocalyptic number.

It is an amenable number.

2175172044 is an abundant number, since it is smaller than the sum of its proper divisors (2904756516).

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

2175172044 is a wasteful number, since it uses less digits than its factorization.

2175172044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161689 (or 161687 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 2175172044 is about 46638.7397342595. The cubic root of 2175172044 is about 1295.6803457380.

Adding to 2175172044 its reverse (4402715712), we get a palindrome (6577887756).

The spelling of 2175172044 in words is "two billion, one hundred seventy-five million, one hundred seventy-two thousand, forty-four".