2215680 has 72 divisors (see below), whose sum is σ = 7088592. Its totient is φ = 589824.

The previous prime is 2215673. The next prime is 2215691. The reversal of 2215680 is 865122.

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 2215680.

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, 3552 + ... + 4128.

2^2215680 is an apocalyptic number.

2215680 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 2215680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3544296).

2215680 is an abundant number, since it is smaller than the sum of its proper divisors (4872912).

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

2215680 is an equidigital number, since it uses as much as digits as its factorization.

2215680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601 (or 587 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 2215680 is about 1488.5160395508. The cubic root of 2215680 is about 130.3674024934.

The spelling of 2215680 in words is "two million, two hundred fifteen thousand, six hundred eighty".