224685 has 12 divisors (see below), whose sum is σ = 389532. Its totient is φ = 119808.

The previous prime is 224683. The next prime is 224699. The reversal of 224685 is 586422.

It can be written as a sum of positive squares in 2 ways, for example, as 79524 + 145161 = 282^2 + 381^2 .

It is not a de Polignac number, because 224685 - 2¹ = 224683 is a prime.

It is a nialpdrome in base 8.

It is a zygodrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2452 + ... + 2541.

It is an arithmetic number, because the mean of its divisors is an integer number (32461).

2²²⁴⁶⁸⁵ is an apocalyptic number.

It is an amenable number.

224685 is a deficient number, since it is larger than the sum of its proper divisors (164847).

224685 is a wasteful number, since it uses less digits than its factorization.

224685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5004 (or 5001 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 224685 is about 474.0094935758. The cubic root of 224685 is about 60.7936230904.

It can be divided in two parts, 224 and 685, that added together give a palindrome (909).

The spelling of 224685 in words is "two hundred twenty-four thousand, six hundred eighty-five".