22605365 has 16 divisors (see below), whose sum is σ = 27697152. Its totient is φ = 17708544.

The previous prime is 22605361. The next prime is 22605367. The reversal of 22605365 is 56350622.

It is a happy number.

22605365 is nontrivially palindromic in base 2.

It is a cyclic number.

It is not a de Polignac number, because 22605365 - 2² = 22605361 is a prime.

It is a super-2 number, since 2×22605365² = 1022005053566450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22605361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61412 + ... + 61778.

It is an arithmetic number, because the mean of its divisors is an integer number (1731072).

Almost surely, 2^22605365 is an apocalyptic number.

It is an amenable number.

22605365 is a deficient number, since it is larger than the sum of its proper divisors (5091787).

22605365 is a wasteful number, since it uses less digits than its factorization.

22605365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 22605365 is about 4754.5099642340. The cubic root of 22605365 is about 282.7507992847.

Adding to 22605365 its reverse (56350622), we get a palindrome (78955987).

The spelling of 22605365 in words is "twenty-two million, six hundred five thousand, three hundred sixty-five".