22168845 has 12 divisors (see below), whose sum is σ = 38426076. Its totient is φ = 11823360.

The previous prime is 22168843. The next prime is 22168879. The reversal of 22168845 is 54886122.

It can be written as a sum of positive squares in 2 ways, for example, as 7469289 + 14699556 = 2733^2 + 3834^2 .

It is not a de Polignac number, because 22168845 - 2¹ = 22168843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22168841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 246276 + ... + 246365.

It is an arithmetic number, because the mean of its divisors is an integer number (3202173).

Almost surely, 2^22168845 is an apocalyptic number.

It is an amenable number.

22168845 is a deficient number, since it is larger than the sum of its proper divisors (16257231).

22168845 is a wasteful number, since it uses less digits than its factorization.

22168845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492652 (or 492649 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 22168845 is about 4708.3802947511. The cubic root of 22168845 is about 280.9189408338.

The spelling of 22168845 in words is "twenty-two million, one hundred sixty-eight thousand, eight hundred forty-five".