2163366 has 24 divisors (see below), whose sum is σ = 4839744. Its totient is φ = 697680.

The previous prime is 2163361. The next prime is 2163401. The reversal of 2163366 is 6633612.

2163366 is a `hidden beast` number, since 21 + 633 + 6 + 6 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163361) 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 11 ways as a sum of consecutive naturals, for example, 1381 + ... + 2496.

It is an arithmetic number, because the mean of its divisors is an integer number (201656).

2^2163366 is an apocalyptic number.

2163366 is an abundant number, since it is smaller than the sum of its proper divisors (2676378).

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

2163366 is a wasteful number, since it uses less digits than its factorization.

2163366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3916 (or 3913 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 2163366 is about 1470.8385363458. The cubic root of 2163366 is about 129.3331931010. Note that the first 3 decimals are identical.

Adding to 2163366 its reverse (6633612), we get a palindrome (8796978).

The spelling of 2163366 in words is "two million, one hundred sixty-three thousand, three hundred sixty-six".