22385393 has 4 divisors (see below), whose sum is σ = 22395120. Its totient is φ = 22375668.

The previous prime is 22385383. The next prime is 22385423. The reversal of 22385393 is 39358322.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 39358322 = 2 ⋅19679161.

It is a cyclic number.

It is not a de Polignac number, because 22385393 - 2⁸ = 22385137 is a prime.

It is a super-2 number, since 2×22385393² = 1002211639528898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22385323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 746 + ... + 6732.

It is an arithmetic number, because the mean of its divisors is an integer number (5598780).

Almost surely, 2^22385393 is an apocalyptic number.

It is an amenable number.

22385393 is a deficient number, since it is larger than the sum of its proper divisors (9727).

22385393 is an equidigital number, since it uses as much as digits as its factorization.

22385393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9726.

The product of its digits is 38880, while the sum is 35.

The square root of 22385393 is about 4731.3204288021. The cubic root of 22385393 is about 281.8306622134.

The spelling of 22385393 in words is "twenty-two million, three hundred eighty-five thousand, three hundred ninety-three".