224643 has 8 divisors (see below), whose sum is σ = 302848. Its totient is φ = 148104.

The previous prime is 224633. The next prime is 224669. The reversal of 224643 is 346422.

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

It is not a de Polignac number, because 224643 - 2⁵ = 224611 is a prime.

It is a d-powerful number, because it can be written as 2⁹ + 2¹⁷ + 6⁵ + 4³ + 4⁸ + 3⁹ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224603) 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, 55 + ... + 672.

It is an arithmetic number, because the mean of its divisors is an integer number (37856).

2²²⁴⁶⁴³ is an apocalyptic number.

224643 is a deficient number, since it is larger than the sum of its proper divisors (78205).

224643 is a wasteful number, since it uses less digits than its factorization.

224643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833.

The product of its digits is 1152, while the sum is 21.

The square root of 224643 is about 473.9651885951. The cubic root of 224643 is about 60.7898348368.

The spelling of 224643 in words is "two hundred twenty-four thousand, six hundred forty-three".