22173449 has 8 divisors (see below), whose sum is σ = 23484480. Its totient is φ = 20891376.

The previous prime is 22173427. The next prime is 22173461. The reversal of 22173449 is 94437122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22173449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22173409) 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 7 ways as a sum of consecutive naturals, for example, 5654 + ... + 8735.

It is an arithmetic number, because the mean of its divisors is an integer number (2935560).

Almost surely, 2^22173449 is an apocalyptic number.

It is an amenable number.

22173449 is a deficient number, since it is larger than the sum of its proper divisors (1311031).

22173449 is a wasteful number, since it uses less digits than its factorization.

22173449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14479.

The product of its digits is 12096, while the sum is 32.

The square root of 22173449 is about 4708.8691848468. The cubic root of 22173449 is about 280.9383864609.

It can be divided in two parts, 22173 and 449, that added together give a palindrome (22622).

The spelling of 22173449 in words is "twenty-two million, one hundred seventy-three thousand, four hundred forty-nine".