2172234 has 16 divisors (see below), whose sum is σ = 4363488. Its totient is φ = 720912.

The previous prime is 2172229. The next prime is 2172239. The reversal of 2172234 is 4322712.

It is an interprime number because it is at equal distance from previous prime (2172229) and next prime (2172239).

It is a self number, because there is not a number n which added to its sum of digits gives 2172234.

It is not an unprimeable number, because it can be changed into a prime (2172239) 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, 1009 + ... + 2315.

It is an arithmetic number, because the mean of its divisors is an integer number (272718).

2^2172234 is an apocalyptic number.

2172234 is an abundant number, since it is smaller than the sum of its proper divisors (2191254).

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

2172234 is a wasteful number, since it uses less digits than its factorization.

2172234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1589.

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

The square root of 2172234 is about 1473.8500602164. The cubic root of 2172234 is about 129.5096716638.

Adding to 2172234 its reverse (4322712), we get a palindrome (6494946).

The spelling of 2172234 in words is "two million, one hundred seventy-two thousand, two hundred thirty-four".