2143484 has 24 divisors (see below), whose sum is σ = 4404960. Its totient is φ = 893376.

The previous prime is 2143483. The next prime is 2143487. The reversal of 2143484 is 4843412.

2143484 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2 + ... + 2070.

It is an arithmetic number, because the mean of its divisors is an integer number (183540).

2^2143484 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2143484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2202480).

2143484 is an abundant number, since it is smaller than the sum of its proper divisors (2261476).

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

2143484 is a wasteful number, since it uses less digits than its factorization.

2143484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2117 (or 2115 counting only the distinct ones).

The product of its digits is 3072, while the sum is 26.

The square root of 2143484 is about 1464.0642062423. The cubic root of 2143484 is about 128.9357691577.

Subtracting from 2143484 its product of digits (3072), we obtain a palindrome (2140412).

Adding to 2143484 its reverse (4843412), we get a palindrome (6986896).

The spelling of 2143484 in words is "two million, one hundred forty-three thousand, four hundred eighty-four".