4223172 has 12 divisors (see below), whose sum is σ = 9854096. Its totient is φ = 1407720.

The previous prime is 4223171. The next prime is 4223179. The reversal of 4223172 is 2713224.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (4223171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175954 + ... + 175977.

Almost surely, 2^4223172 is an apocalyptic number.

It is an amenable number.

4223172 is an abundant number, since it is smaller than the sum of its proper divisors (5630924).

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

4223172 is a wasteful number, since it uses less digits than its factorization.

4223172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351938 (or 351936 counting only the distinct ones).

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

The square root of 4223172 is about 2055.0357661121. The cubic root of 4223172 is about 161.6390378028.

Adding to 4223172 its reverse (2713224), we get a palindrome (6936396).

The spelling of 4223172 in words is "four million, two hundred twenty-three thousand, one hundred seventy-two".