2216308 has 6 divisors (see below), whose sum is σ = 3878546. Its totient is φ = 1108152.

The previous prime is 2216299. The next prime is 2216309. The reversal of 2216308 is 8036122.

It can be written as a sum of positive squares in only one way, i.e., 1373584 + 842724 = 1172^2 + 918^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277035 + ... + 277042.

2^2216308 is an apocalyptic number.

It is an amenable number.

2216308 is a deficient number, since it is larger than the sum of its proper divisors (1662238).

2216308 is a wasteful number, since it uses less digits than its factorization.

2216308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554081 (or 554079 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2216308 is about 1488.7269729537. The cubic root of 2216308 is about 130.3797182001.

The spelling of 2216308 in words is "two million, two hundred sixteen thousand, three hundred eight".