224322985 has 4 divisors (see below), whose sum is σ = 269187588. Its totient is φ = 179458384.

The previous prime is 224322907. The next prime is 224322997. The reversal of 224322985 is 589223422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 589223422 = 2 ⋅294611711.

It can be written as a sum of positive squares in 2 ways, for example, as 73205136 + 151117849 = 8556^2 + 12293^2 .

It is a cyclic number.

It is not a de Polignac number, because 224322985 - 2¹¹ = 224320937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22432294 + ... + 22432303.

It is an arithmetic number, because the mean of its divisors is an integer number (67296897).

Almost surely, 2^224322985 is an apocalyptic number.

It is an amenable number.

224322985 is a deficient number, since it is larger than the sum of its proper divisors (44864603).

224322985 is an equidigital number, since it uses as much as digits as its factorization.

224322985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44864602.

The product of its digits is 69120, while the sum is 37.

The square root of 224322985 is about 14977.4158318450. The cubic root of 224322985 is about 607.6095508261.

The spelling of 224322985 in words is "two hundred twenty-four million, three hundred twenty-two thousand, nine hundred eighty-five".