2184340 has 24 divisors (see below), whose sum is σ = 4624200. Its totient is φ = 866688.

The previous prime is 2184331. The next prime is 2184359. The reversal of 2184340 is 434812.

It can be written as a sum of positive squares in 4 ways, for example, as 367236 + 1817104 = 606^2 + 1348^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2614 + ... + 3346.

It is an arithmetic number, because the mean of its divisors is an integer number (192675).

2^2184340 is an apocalyptic number.

2184340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2184340 is an abundant number, since it is smaller than the sum of its proper divisors (2439860).

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

2184340 is a wasteful number, since it uses less digits than its factorization.

2184340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891 (or 889 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 2184340 is about 1477.9512847181. The cubic root of 2184340 is about 129.7498146846.

The spelling of 2184340 in words is "two million, one hundred eighty-four thousand, three hundred forty".