2188272 has 20 divisors (see below), whose sum is σ = 5653160. Its totient is φ = 729408.

The previous prime is 2188271. The next prime is 2188279. The reversal of 2188272 is 2728812.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2188271) 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, 22747 + ... + 22842.

It is an arithmetic number, because the mean of its divisors is an integer number (282658).

2^2188272 is an apocalyptic number.

It is an amenable number.

2188272 is an abundant number, since it is smaller than the sum of its proper divisors (3464888).

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

2188272 is a wasteful number, since it uses less digits than its factorization.

2188272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45600 (or 45594 counting only the distinct ones).

The product of its digits is 3584, while the sum is 30.

The square root of 2188272 is about 1479.2809063866. The cubic root of 2188272 is about 129.8276216281.

The spelling of 2188272 in words is "two million, one hundred eighty-eight thousand, two hundred seventy-two".