2243172 has 24 divisors (see below), whose sum is σ = 5334336. Its totient is φ = 733408.

The previous prime is 2243161. The next prime is 2243177. The reversal of 2243172 is 2713422.

2243172 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2243177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1128 + ... + 2399.

It is an arithmetic number, because the mean of its divisors is an integer number (222264).

2^2243172 is an apocalyptic number.

It is an amenable number.

2243172 is an abundant number, since it is smaller than the sum of its proper divisors (3091164).

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

2243172 is a wasteful number, since it uses less digits than its factorization.

2243172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3587 (or 3585 counting only the distinct ones).

The product of its digits is 672, while the sum is 21.

The square root of 2243172 is about 1497.7222706497. The cubic root of 2243172 is about 130.9043841251.

Adding to 2243172 its reverse (2713422), we get a palindrome (4956594).

It can be divided in two parts, 2243 and 172, that added together give a triangular number (2415 = T₆₉).

The spelling of 2243172 in words is "two million, two hundred forty-three thousand, one hundred seventy-two".