2216726 has 4 divisors (see below), whose sum is σ = 3325092. Its totient is φ = 1108362.

The previous prime is 2216701. The next prime is 2216729. The reversal of 2216726 is 6276122.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 2216695 and 2216704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554180 + ... + 554183.

It is an arithmetic number, because the mean of its divisors is an integer number (831273).

2^2216726 is an apocalyptic number.

2216726 is a deficient number, since it is larger than the sum of its proper divisors (1108366).

2216726 is a wasteful number, since it uses less digits than its factorization.

2216726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108365.

The product of its digits is 2016, while the sum is 26.

The square root of 2216726 is about 1488.8673547365. The cubic root of 2216726 is about 130.3879143077.

The spelling of 2216726 in words is "two million, two hundred sixteen thousand, seven hundred twenty-six".