2216992 has 24 divisors (see below), whose sum is σ = 4517100. Its totient is φ = 1069824.

The previous prime is 2216989. The next prime is 2216999. The reversal of 2216992 is 2996122.

2216992 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2178576 + 38416 = 1476^2 + 196^2 .

It is not an unprimeable number, because it can be changed into a prime (2216999) by changing a digit.

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, 267 + ... + 2122.

2^2216992 is an apocalyptic number.

It is an amenable number.

2216992 is an abundant number, since it is smaller than the sum of its proper divisors (2300108).

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

2216992 is a wasteful number, since it uses less digits than its factorization.

2216992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2428 (or 2420 counting only the distinct ones).

The product of its digits is 3888, while the sum is 31.

The square root of 2216992 is about 1488.9566817070. The cubic root of 2216992 is about 130.3931294760.

The spelling of 2216992 in words is "two million, two hundred sixteen thousand, nine hundred ninety-two".