2184240 has 80 divisors (see below), whose sum is σ = 7142400. Its totient is φ = 550656.

The previous prime is 2184223. The next prime is 2184257. The reversal of 2184240 is 424812.

It is an interprime number because it is at equal distance from previous prime (2184223) and next prime (2184257).

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4321 + ... + 4799.

It is an arithmetic number, because the mean of its divisors is an integer number (89280).

2^2184240 is an apocalyptic number.

2184240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2184240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3571200).

2184240 is an abundant number, since it is smaller than the sum of its proper divisors (4958160).

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

2184240 is a wasteful number, since it uses less digits than its factorization.

2184240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 2184240 is about 1477.9174537165. The cubic root of 2184240 is about 129.7478346541.

The spelling of 2184240 in words is "two million, one hundred eighty-four thousand, two hundred forty".