22006245 has 32 divisors (see below), whose sum is σ = 37549440. Its totient is φ = 10967040.

The previous prime is 22006241. The next prime is 22006247. The reversal of 22006245 is 54260022.

It is not a de Polignac number, because 22006245 - 2² = 22006241 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22006241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53601 + ... + 54009.

It is an arithmetic number, because the mean of its divisors is an integer number (1173420).

Almost surely, 2^22006245 is an apocalyptic number.

It is an amenable number.

22006245 is a deficient number, since it is larger than the sum of its proper divisors (15543195).

22006245 is a wasteful number, since it uses less digits than its factorization.

22006245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 22006245 is about 4691.0814318236. The cubic root of 22006245 is about 280.2304437930.

Adding to 22006245 its reverse (54260022), we get a palindrome (76266267).

The spelling of 22006245 in words is "twenty-two million, six thousand, two hundred forty-five".