22393285 has 4 divisors (see below), whose sum is σ = 26871948. Its totient is φ = 17914624.

The previous prime is 22393247. The next prime is 22393289. The reversal of 22393285 is 58239322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58239322 = 2 ⋅29119661.

It can be written as a sum of positive squares in 2 ways, for example, as 3305124 + 19088161 = 1818^2 + 4369^2 .

It is a cyclic number.

It is not a de Polignac number, because 22393285 - 2⁷ = 22393157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22393285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22393289) 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, 2239324 + ... + 2239333.

It is an arithmetic number, because the mean of its divisors is an integer number (6717987).

Almost surely, 2^22393285 is an apocalyptic number.

It is an amenable number.

22393285 is a deficient number, since it is larger than the sum of its proper divisors (4478663).

22393285 is an equidigital number, since it uses as much as digits as its factorization.

22393285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4478662.

The product of its digits is 25920, while the sum is 34.

The square root of 22393285 is about 4732.1543719536. The cubic root of 22393285 is about 281.8637782466.

The spelling of 22393285 in words is "twenty-two million, three hundred ninety-three thousand, two hundred eighty-five".