224845 has 8 divisors (see below), whose sum is σ = 272376. Its totient is φ = 178176.

The previous prime is 224831. The next prime is 224863. The reversal of 224845 is 548422.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 169 + 224676 = 13^2 + 474^2 .

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 224845 - 2⁵ = 224813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 849 + ... + 1081.

It is an arithmetic number, because the mean of its divisors is an integer number (34047).

2²²⁴⁸⁴⁵ is an apocalyptic number.

It is an amenable number.

224845 is a deficient number, since it is larger than the sum of its proper divisors (47531).

224845 is a wasteful number, since it uses less digits than its factorization.

224845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431.

The product of its digits is 2560, while the sum is 25.

The square root of 224845 is about 474.1782365314. The cubic root of 224845 is about 60.8080502095.

The spelling of 224845 in words is "two hundred twenty-four thousand, eight hundred forty-five".