2172232 has 32 divisors (see below), whose sum is σ = 4435200. Its totient is φ = 993600.

The previous prime is 2172229. The next prime is 2172239. The reversal of 2172232 is 2322712.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (2172239) 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 7 ways as a sum of consecutive naturals, for example, 4482 + ... + 4942.

It is an arithmetic number, because the mean of its divisors is an integer number (138600).

2^2172232 is an apocalyptic number.

It is an amenable number.

2172232 is an abundant number, since it is smaller than the sum of its proper divisors (2262968).

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

2172232 is a wasteful number, since it uses less digits than its factorization.

2172232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517 (or 513 counting only the distinct ones).

The product of its digits is 336, while the sum is 19.

The square root of 2172232 is about 1473.8493817212. The cubic root of 2172232 is about 129.5096319168.

Adding to 2172232 its reverse (2322712), we get a palindrome (4494944).

The spelling of 2172232 in words is "two million, one hundred seventy-two thousand, two hundred thirty-two".