22306 has 8 divisors (see below), whose sum is σ = 35280. Its totient is φ = 10548.

The previous prime is 22303. The next prime is 22307. The reversal of 22306 is 60322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (22303) 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, 256 + ... + 331.

It is an arithmetic number, because the mean of its divisors is an integer number (4410).

2²²³⁰⁶ is an apocalyptic number.

22306 is a deficient number, since it is larger than the sum of its proper divisors (12974).

22306 is a wasteful number, since it uses less digits than its factorization.

22306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 22306 is about 149.3519333655. The cubic root of 22306 is about 28.1497083281.

Adding to 22306 its reverse (60322), we get a palindrome (82628).

The spelling of 22306 in words is "twenty-two thousand, three hundred six".