2143366 has 4 divisors (see below), whose sum is σ = 3215052. Its totient is φ = 1071682.

The previous prime is 2143331. The next prime is 2143369. The reversal of 2143366 is 6633412.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2143366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535840 + ... + 535843.

It is an arithmetic number, because the mean of its divisors is an integer number (803763).

2^2143366 is an apocalyptic number.

2143366 is a deficient number, since it is larger than the sum of its proper divisors (1071686).

2143366 is a wasteful number, since it uses less digits than its factorization.

2143366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071685.

The product of its digits is 2592, while the sum is 25.

The square root of 2143366 is about 1464.0239069086. The cubic root of 2143366 is about 128.9334031187.

Adding to 2143366 its reverse (6633412), we get a palindrome (8776778).

The spelling of 2143366 in words is "two million, one hundred forty-three thousand, three hundred sixty-six".