22242265 has 16 divisors (see below), whose sum is σ = 27993600. Its totient is φ = 16933312.

The previous prime is 22242263. The next prime is 22242277. The reversal of 22242265 is 56224222.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22242265 - 2¹ = 22242263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22242263) 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, 30576 + ... + 31294.

It is an arithmetic number, because the mean of its divisors is an integer number (1749600).

Almost surely, 2^22242265 is an apocalyptic number.

It is an amenable number.

22242265 is a deficient number, since it is larger than the sum of its proper divisors (5751335).

22242265 is a wasteful number, since it uses less digits than its factorization.

22242265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016.

The product of its digits is 3840, while the sum is 25.

The square root of 22242265 is about 4716.1705863974. The cubic root of 22242265 is about 281.2287200360.

Adding to 22242265 its reverse (56224222), we get a palindrome (78466487).

It can be divided in two parts, 2224 and 2265, that added together give a square (4489 = 67²).

The spelling of 22242265 in words is "twenty-two million, two hundred forty-two thousand, two hundred sixty-five".