2188680 has 128 divisors (see below), whose sum is σ = 7499520. Its totient is φ = 506880.

The previous prime is 2188679. The next prime is 2188687. The reversal of 2188680 is 868812.

It is not an unprimeable number, because it can be changed into a prime (2188687) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35850 + ... + 35910.

It is an arithmetic number, because the mean of its divisors is an integer number (58590).

2^2188680 is an apocalyptic number.

2188680 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 2188680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3749760).

2188680 is an abundant number, since it is smaller than the sum of its proper divisors (5310840).

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

2188680 is a wasteful number, since it uses less digits than its factorization.

2188680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 2188680 is about 1479.4188048014. The cubic root of 2188680 is about 129.8356898478.

The spelling of 2188680 in words is "two million, one hundred eighty-eight thousand, six hundred eighty".