2188480 has 56 divisors (see below), whose sum is σ = 5961888. Its totient is φ = 749568.

The previous prime is 2188463. The next prime is 2188481. The reversal of 2188480 is 848812.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (2188481) 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 7 ways as a sum of consecutive naturals, for example, 1752 + ... + 2728.

2^2188480 is an apocalyptic number.

2188480 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 2188480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2980944).

2188480 is an abundant number, since it is smaller than the sum of its proper divisors (3773408).

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

2188480 is an equidigital number, since it uses as much as digits as its factorization.

2188480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001 (or 991 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 31.

The square root of 2188480 is about 1479.3512091454. The cubic root of 2188480 is about 129.8317349634.

The spelling of 2188480 in words is "two million, one hundred eighty-eight thousand, four hundred eighty".