22288249 has 8 divisors (see below), whose sum is σ = 23032512. Its totient is φ = 21556080.

The previous prime is 22288247. The next prime is 22288261. The reversal of 22288249 is 94288222.

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

It is a cyclic number.

It is not a de Polignac number, because 22288249 - 2¹ = 22288247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22288243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 802 + ... + 6724.

It is an arithmetic number, because the mean of its divisors is an integer number (2879064).

Almost surely, 2^22288249 is an apocalyptic number.

It is an amenable number.

22288249 is a deficient number, since it is larger than the sum of its proper divisors (744263).

22288249 is an equidigital number, since it uses as much as digits as its factorization.

22288249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6047.

The product of its digits is 36864, while the sum is 37.

The square root of 22288249 is about 4721.0432109863. The cubic root of 22288249 is about 281.4223921543.

The spelling of 22288249 in words is "twenty-two million, two hundred eighty-eight thousand, two hundred forty-nine".