2143384 has 16 divisors (see below), whose sum is σ = 4056120. Its totient is φ = 1061760.

The previous prime is 2143381. The next prime is 2143391. The reversal of 2143384 is 4833412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282 + ... + 2089.

2^2143384 is an apocalyptic number.

It is an amenable number.

2143384 is a deficient number, since it is larger than the sum of its proper divisors (1912736).

2143384 is a wasteful number, since it uses less digits than its factorization.

2143384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2490 (or 2486 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 2143384 is about 1464.0300543363. The cubic root of 2143384 is about 128.9337640455.

Adding to 2143384 its reverse (4833412), we get a palindrome (6976796).

The spelling of 2143384 in words is "two million, one hundred forty-three thousand, three hundred eighty-four".