2183280 has 80 divisors (see below), whose sum is σ = 7392384. Its totient is φ = 528640.

The previous prime is 2183261. The next prime is 2183281. The reversal of 2183280 is 823812.

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

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2183280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2183281) by changing a digit.

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, 2227 + ... + 3053.

2^2183280 is an apocalyptic number.

2183280 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 2183280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3696192).

2183280 is an abundant number, since it is smaller than the sum of its proper divisors (5209104).

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

2183280 is a wasteful number, since it uses less digits than its factorization.

2183280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854 (or 848 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 2183280 is about 1477.5926366898. The cubic root of 2183280 is about 129.7288232857.

It can be divided in two parts, 21832 and 80, that added together give a palindrome (21912).

The spelling of 2183280 in words is "two million, one hundred eighty-three thousand, two hundred eighty".