224666 has 8 divisors (see below), whose sum is σ = 362964. Its totient is φ = 103680.

The previous prime is 224633. The next prime is 224669. The reversal of 224666 is 666422.

It can be written as a sum of positive squares in 2 ways, for example, as 172225 + 52441 = 415^2 + 229^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 8641 = 224666 / (2 + 2 + 4 + 6 + 6 + 6).

It is a d-powerful number, because it can be written as 2 + 2¹⁷ + 6³ + 4³ + 6⁶ + 6⁶ .

224666 is a modest number, since divided by 666 gives 224 as remainder.

It is a Curzon number.

It is a plaindrome in base 10.

It is a nialpdrome in base 8.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 224666.

It is not an unprimeable number, because it can be changed into a prime (224669) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4295 + ... + 4346.

2²²⁴⁶⁶⁶ is an apocalyptic number.

224666 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

224666 is a deficient number, since it is larger than the sum of its proper divisors (138298).

224666 is a wasteful number, since it uses less digits than its factorization.

224666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8656.

The product of its digits is 3456, while the sum is 26.

The square root of 224666 is about 473.9894513594. The cubic root of 224666 is about 60.7919094151.

The spelling of 224666 in words is "two hundred twenty-four thousand, six hundred sixty-six".