2168243 has 16 divisors (see below), whose sum is σ = 2799360. Its totient is φ = 1629600.

The previous prime is 2168239. The next prime is 2168263. The reversal of 2168243 is 3428612.

It is not a de Polignac number, because 2168243 - 2² = 2168239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2168263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1748 + ... + 2718.

It is an arithmetic number, because the mean of its divisors is an integer number (174960).

2^2168243 is an apocalyptic number.

2168243 is a deficient number, since it is larger than the sum of its proper divisors (631117).

2168243 is a wasteful number, since it uses less digits than its factorization.

2168243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018.

The product of its digits is 2304, while the sum is 26.

The square root of 2168243 is about 1472.4955008420. The cubic root of 2168243 is about 129.4303079043.

The spelling of 2168243 in words is "two million, one hundred sixty-eight thousand, two hundred forty-three".