22312306 has 8 divisors (see below), whose sum is σ = 33530220. Its totient is φ = 11135568.

The previous prime is 22312271. The next prime is 22312307. The reversal of 22312306 is 60321322.

It can be written as a sum of positive squares in 2 ways, for example, as 19439281 + 2873025 = 4409^2 + 1695^2 .

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

It is a super-3 number, since 3×22312306³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22312307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8901 + ... + 11128.

Almost surely, 2^22312306 is an apocalyptic number.

22312306 is a deficient number, since it is larger than the sum of its proper divisors (11217914).

22312306 is a wasteful number, since it uses less digits than its factorization.

22312306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20588.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 22312306 is about 4723.5903717405. The cubic root of 22312306 is about 281.5236075845.

Adding to 22312306 its reverse (60321322), we get a palindrome (82633628).

The spelling of 22312306 in words is "twenty-two million, three hundred twelve thousand, three hundred six".