224865 has 24 divisors (see below), whose sum is σ = 411840. Its totient is φ = 113184.

The previous prime is 224863. The next prime is 224869. The reversal of 224865 is 568422.

It is not a de Polignac number, because 224865 - 2¹ = 224863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (224863) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 724 + ... + 986.

It is an arithmetic number, because the mean of its divisors is an integer number (17160).

2²²⁴⁸⁶⁵ is an apocalyptic number.

It is an amenable number.

224865 is a deficient number, since it is larger than the sum of its proper divisors (186975).

224865 is a wasteful number, since it uses less digits than its factorization.

224865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293 (or 290 counting only the distinct ones).

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

The square root of 224865 is about 474.1993251788. The cubic root of 224865 is about 60.8098531181.

It can be divided in two parts, 224 and 865, that added together give a square (1089 = 33²).

The spelling of 224865 in words is "two hundred twenty-four thousand, eight hundred sixty-five".