22300065 has 12 divisors (see below), whose sum is σ = 38653524. Its totient is φ = 11893344.

The previous prime is 22300063. The next prime is 22300081. The reversal of 22300065 is 56000322.

It can be written as a sum of positive squares in 2 ways, for example, as 2692881 + 19607184 = 1641^2 + 4428^2 .

It is not a de Polignac number, because 22300065 - 2¹ = 22300063 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22300063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 247734 + ... + 247823.

It is an arithmetic number, because the mean of its divisors is an integer number (3221127).

Almost surely, 2^22300065 is an apocalyptic number.

It is an amenable number.

22300065 is a deficient number, since it is larger than the sum of its proper divisors (16353459).

22300065 is a wasteful number, since it uses less digits than its factorization.

22300065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495568 (or 495565 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 22300065 is about 4722.2944634997. The cubic root of 22300065 is about 281.4721149107.

Adding to 22300065 its reverse (56000322), we get a palindrome (78300387).

The spelling of 22300065 in words is "twenty-two million, three hundred thousand, sixty-five".