22384729 has 8 divisors (see below), whose sum is σ = 23224320. Its totient is φ = 21559200.

The previous prime is 22384673. The next prime is 22384753. The reversal of 22384729 is 92748322.

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

It is a cyclic number.

It is not a de Polignac number, because 22384729 - 2⁷ = 22384601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22384799) 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 7 ways as a sum of consecutive naturals, for example, 217 + ... + 6694.

It is an arithmetic number, because the mean of its divisors is an integer number (2903040).

Almost surely, 2^22384729 is an apocalyptic number.

It is an amenable number.

22384729 is a deficient number, since it is larger than the sum of its proper divisors (839591).

22384729 is an equidigital number, since it uses as much as digits as its factorization.

22384729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7031.

The product of its digits is 48384, while the sum is 37.

The square root of 22384729 is about 4731.2502575958. The cubic root of 22384729 is about 281.8278756133.

The spelling of 22384729 in words is "twenty-two million, three hundred eighty-four thousand, seven hundred twenty-nine".