2216704 has 36 divisors (see below), whose sum is σ = 5060944. Its totient is φ = 949248.

The previous prime is 2216701. The next prime is 2216729. The reversal of 2216704 is 4076122.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2216701) 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, 1174 + ... + 2410.

2^2216704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2216704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2530472).

2216704 is an abundant number, since it is smaller than the sum of its proper divisors (2844240).

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

2216704 is an equidigital number, since it uses as much as digits as its factorization.

2216704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260 (or 1246 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 2216704 is about 1488.8599665516. The cubic root of 2216704 is about 130.3874829593.

The spelling of 2216704 in words is "two million, two hundred sixteen thousand, seven hundred four".