22380065 has 4 divisors (see below), whose sum is σ = 26856084. Its totient is φ = 17904048.

The previous prime is 22380053. The next prime is 22380073. The reversal of 22380065 is 56008322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56008322 = 2 ⋅28004161.

It can be written as a sum of positive squares in 2 ways, for example, as 4343056 + 18037009 = 2084^2 + 4247^2 .

It is a cyclic number.

It is not a de Polignac number, because 22380065 - 2⁴ = 22380049 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2238002 + ... + 2238011.

It is an arithmetic number, because the mean of its divisors is an integer number (6714021).

Almost surely, 2^22380065 is an apocalyptic number.

It is an amenable number.

22380065 is a deficient number, since it is larger than the sum of its proper divisors (4476019).

22380065 is an equidigital number, since it uses as much as digits as its factorization.

22380065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4476018.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 22380065 is about 4730.7573389469. The cubic root of 22380065 is about 281.8083007131.

Adding to 22380065 its reverse (56008322), we get a palindrome (78388387).

The spelling of 22380065 in words is "twenty-two million, three hundred eighty thousand, sixty-five".