2173275644 has 12 divisors (see below), whose sum is σ = 3813597984. Its totient is φ = 1083676224.

The previous prime is 2173275641. The next prime is 2173275649. The reversal of 2173275644 is 4465723712.

It is a super-2 number, since 2×2173275644² = 9446254049607229472, which contains 22 as substring.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2173275641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 738749 + ... + 741684.

It is an arithmetic number, because the mean of its divisors is an integer number (317799832).

Almost surely, 2^2173275644 is an apocalyptic number.

It is an amenable number.

2173275644 is a deficient number, since it is larger than the sum of its proper divisors (1640322340).

2173275644 is a wasteful number, since it uses less digits than its factorization.

2173275644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480804 (or 1480802 counting only the distinct ones).

The product of its digits is 282240, while the sum is 41.

The square root of 2173275644 is about 46618.4045630049. The cubic root of 2173275644 is about 1295.3036946690.

The spelling of 2173275644 in words is "two billion, one hundred seventy-three million, two hundred seventy-five thousand, six hundred forty-four".