22162245 has 32 divisors (see below), whose sum is σ = 41029632. Its totient is φ = 10005312.

The previous prime is 22162213. The next prime is 22162249. The reversal of 22162245 is 54226122.

It is a happy number.

It is not a de Polignac number, because 22162245 - 2⁵ = 22162213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22162249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7444 + ... + 9986.

It is an arithmetic number, because the mean of its divisors is an integer number (1282176).

Almost surely, 2^22162245 is an apocalyptic number.

It is an amenable number.

22162245 is a deficient number, since it is larger than the sum of its proper divisors (18867387).

22162245 is a wasteful number, since it uses less digits than its factorization.

22162245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641.

The product of its digits is 1920, while the sum is 24.

The square root of 22162245 is about 4707.6793646127. The cubic root of 22162245 is about 280.8910601295.

Adding to 22162245 its reverse (54226122), we get a palindrome (76388367).

The spelling of 22162245 in words is "twenty-two million, one hundred sixty-two thousand, two hundred forty-five".