2163268 has 12 divisors (see below), whose sum is σ = 3797500. Its totient is φ = 1078272.

The previous prime is 2163263. The next prime is 2163281. The reversal of 2163268 is 8623612.

It can be written as a sum of positive squares in 2 ways, for example, as 529984 + 1633284 = 728^2 + 1278^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2163263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1108 + ... + 2356.

2^2163268 is an apocalyptic number.

It is an amenable number.

2163268 is a deficient number, since it is larger than the sum of its proper divisors (1634232).

2163268 is a wasteful number, since it uses less digits than its factorization.

2163268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686 (or 1684 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 2163268 is about 1470.8052216388. The cubic root of 2163268 is about 129.3312401499.

The spelling of 2163268 in words is "two million, one hundred sixty-three thousand, two hundred sixty-eight".