224000009 has 4 divisors (see below), whose sum is σ = 224076804. Its totient is φ = 223923216.

The previous prime is 223999903. The next prime is 224000047. The reversal of 224000009 is 900000422.

224000009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 115777600 + 108222409 = 10760^2 + 10403^2 .

It is a cyclic number.

It is not a de Polignac number, because 224000009 - 2⁸ = 223999753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224000099) 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, 33842 + ... + 39915.

It is an arithmetic number, because the mean of its divisors is an integer number (56019201).

Almost surely, 2^224000009 is an apocalyptic number.

It is an amenable number.

224000009 is a deficient number, since it is larger than the sum of its proper divisors (76795).

224000009 is an equidigital number, since it uses as much as digits as its factorization.

224000009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76794.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 224000009 is about 14966.6298477647. The cubic root of 224000009 is about 607.3178025089.

The spelling of 224000009 in words is "two hundred twenty-four million, nine", and thus it is an aban number.