2196620 has 12 divisors (see below), whose sum is σ = 4612944. Its totient is φ = 878640.

The previous prime is 2196619. The next prime is 2196641. The reversal of 2196620 is 266912.

It is a self number, because there is not a number n which added to its sum of digits gives 2196620.

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, 54896 + ... + 54935.

It is an arithmetic number, because the mean of its divisors is an integer number (384412).

2^2196620 is an apocalyptic number.

2196620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2196620 is an abundant number, since it is smaller than the sum of its proper divisors (2416324).

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

2196620 is a wasteful number, since it uses less digits than its factorization.

2196620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109840 (or 109838 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 2196620 is about 1482.0998616827. The cubic root of 2196620 is about 129.9925044988.

The spelling of 2196620 in words is "two million, one hundred ninety-six thousand, six hundred twenty".