2196680 has 16 divisors (see below), whose sum is σ = 4942620. Its totient is φ = 878656.

The previous prime is 2196673. The next prime is 2196697. The reversal of 2196680 is 866912.

It can be written as a sum of positive squares in 2 ways, for example, as 2149156 + 47524 = 1466^2 + 218^2 .

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 3 ways as a sum of consecutive naturals, for example, 27419 + ... + 27498.

2^2196680 is an apocalyptic number.

2196680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2196680 is an abundant number, since it is smaller than the sum of its proper divisors (2745940).

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

2196680 is a wasteful number, since it uses less digits than its factorization.

2196680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54928 (or 54924 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 2196680 is about 1482.1201030956. The cubic root of 2196680 is about 129.9936880565.

The spelling of 2196680 in words is "two million, one hundred ninety-six thousand, six hundred eighty".