224644447 has 4 divisors (see below), whose sum is σ = 228452040. Its totient is φ = 220836856.

The previous prime is 224644439. The next prime is 224644451. The reversal of 224644447 is 744446422.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 224644447 - 2³ = 224644439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224644457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1903708 + ... + 1903825.

It is an arithmetic number, because the mean of its divisors is an integer number (57113010).

Almost surely, 2^224644447 is an apocalyptic number.

224644447 is a deficient number, since it is larger than the sum of its proper divisors (3807593).

224644447 is an equidigital number, since it uses as much as digits as its factorization.

224644447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3807592.

The product of its digits is 172032, while the sum is 37.

The square root of 224644447 is about 14988.1435474845. The cubic root of 224644447 is about 607.8996535903.

The spelling of 224644447 in words is "two hundred twenty-four million, six hundred forty-four thousand, four hundred forty-seven".