224745 has 8 divisors (see below), whose sum is σ = 359616. Its totient is φ = 119856.

The previous prime is 224743. The next prime is 224759. The reversal of 224745 is 547422.

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

It is not a de Polignac number, because 224745 - 2¹ = 224743 is a prime.

224745 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (224743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7477 + ... + 7506.

It is an arithmetic number, because the mean of its divisors is an integer number (44952).

2²²⁴⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

224745 is a deficient number, since it is larger than the sum of its proper divisors (134871).

224745 is a wasteful number, since it uses less digits than its factorization.

224745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14991.

The product of its digits is 2240, while the sum is 24.

The square root of 224745 is about 474.0727792228. The cubic root of 224745 is about 60.7990340624.

It can be divided in two parts, 224 and 745, that added together give a palindrome (969).

The spelling of 224745 in words is "two hundred twenty-four thousand, seven hundred forty-five".