22434385 has 4 divisors (see below), whose sum is σ = 26921268. Its totient is φ = 17947504.

The previous prime is 22434353. The next prime is 22434403. The reversal of 22434385 is 58343422.

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 13571856 + 8862529 = 3684^2 + 2977^2 .

It is a cyclic number.

It is not a de Polignac number, because 22434385 - 2⁵ = 22434353 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2243434 + ... + 2243443.

It is an arithmetic number, because the mean of its divisors is an integer number (6730317).

Almost surely, 2^22434385 is an apocalyptic number.

It is an amenable number.

22434385 is a deficient number, since it is larger than the sum of its proper divisors (4486883).

22434385 is an equidigital number, since it uses as much as digits as its factorization.

22434385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4486882.

The product of its digits is 23040, while the sum is 31.

The square root of 22434385 is about 4736.4950121371. The cubic root of 22434385 is about 282.0361144500.

The spelling of 22434385 in words is "twenty-two million, four hundred thirty-four thousand, three hundred eighty-five".