2171248 has 20 divisors (see below), whose sum is σ = 4253200. Its totient is φ = 1073664.

The previous prime is 2171243. The next prime is 2171249. The reversal of 2171248 is 8421712.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2171243) 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, 853 + ... + 2251.

It is an arithmetic number, because the mean of its divisors is an integer number (212660).

2^2171248 is an apocalyptic number.

It is an amenable number.

2171248 is a deficient number, since it is larger than the sum of its proper divisors (2081952).

2171248 is a wasteful number, since it uses less digits than its factorization.

2171248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504 (or 1498 counting only the distinct ones).

The product of its digits is 896, while the sum is 25.

The square root of 2171248 is about 1473.5155241802. The cubic root of 2171248 is about 129.4900734280.

The spelling of 2171248 in words is "two million, one hundred seventy-one thousand, two hundred forty-eight".