224804809 has 4 divisors (see below), whose sum is σ = 228615120. Its totient is φ = 220994500.

The previous prime is 224804803. The next prime is 224804819. The reversal of 224804809 is 908408422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224804809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224804803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1905067 + ... + 1905184.

It is an arithmetic number, because the mean of its divisors is an integer number (57153780).

Almost surely, 2^224804809 is an apocalyptic number.

It is an amenable number.

224804809 is a deficient number, since it is larger than the sum of its proper divisors (3810311).

224804809 is an equidigital number, since it uses as much as digits as its factorization.

224804809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3810310.

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 224804809 is about 14993.4922216274. The cubic root of 224804809 is about 608.0442685118.

The spelling of 224804809 in words is "two hundred twenty-four million, eight hundred four thousand, eight hundred nine".