22173249 has 16 divisors (see below), whose sum is σ = 34702208. Its totient is φ = 12327552.

The previous prime is 22173227. The next prime is 22173259. The reversal of 22173249 is 94237122.

It is not a de Polignac number, because 22173249 - 2⁷ = 22173121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22173259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13492 + ... + 15045.

It is an arithmetic number, because the mean of its divisors is an integer number (2168888).

Almost surely, 2^22173249 is an apocalyptic number.

It is an amenable number.

22173249 is a deficient number, since it is larger than the sum of its proper divisors (12528959).

22173249 is a wasteful number, since it uses less digits than its factorization.

22173249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28584.

The product of its digits is 6048, while the sum is 30.

The square root of 22173249 is about 4708.8479482778. The cubic root of 22173249 is about 280.9375417893.

It can be divided in two parts, 22173 and 249, that added together give a palindrome (22422).

The spelling of 22173249 in words is "twenty-two million, one hundred seventy-three thousand, two hundred forty-nine".