22306132 has 12 divisors (see below), whose sum is σ = 39988116. Its totient is φ = 10880960.

The previous prime is 22306117. The next prime is 22306139. The reversal of 22306132 is 23160322.

It can be written as a sum of positive squares in 2 ways, for example, as 3261636 + 19044496 = 1806^2 + 4364^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22306139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67843 + ... + 68170.

It is an arithmetic number, because the mean of its divisors is an integer number (3332343).

Almost surely, 2^22306132 is an apocalyptic number.

It is an amenable number.

22306132 is a deficient number, since it is larger than the sum of its proper divisors (17681984).

22306132 is a wasteful number, since it uses less digits than its factorization.

22306132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136058 (or 136056 counting only the distinct ones).

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

The square root of 22306132 is about 4722.9367982221. The cubic root of 22306132 is about 281.4976385505.

Adding to 22306132 its reverse (23160322), we get a palindrome (45466454).

The spelling of 22306132 in words is "twenty-two million, three hundred six thousand, one hundred thirty-two".