2199616 has 14 divisors (see below), whose sum is σ = 4364990. Its totient is φ = 1099776.

The previous prime is 2199601. The next prime is 2199623. The reversal of 2199616 is 6169912.

It can be written as a sum of positive squares in only one way, i.e., 2190400 + 9216 = 1480^2 + 96^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17121 + ... + 17248.

It is an arithmetic number, because the mean of its divisors is an integer number (311785).

2^2199616 is an apocalyptic number.

It is an amenable number.

2199616 is a deficient number, since it is larger than the sum of its proper divisors (2165374).

2199616 is an equidigital number, since it uses as much as digits as its factorization.

2199616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34381 (or 34371 counting only the distinct ones).

The product of its digits is 5832, while the sum is 34.

The square root of 2199616 is about 1483.1102453965. The cubic root of 2199616 is about 130.0515771673.

The spelling of 2199616 in words is "two million, one hundred ninety-nine thousand, six hundred sixteen".