22274865 has 16 divisors (see below), whose sum is σ = 39600000. Its totient is φ = 11879856.

The previous prime is 22274809. The next prime is 22274869. The reversal of 22274865 is 56847222.

It is not a de Polignac number, because 22274865 - 2⁷ = 22274737 is a prime.

It is a super-3 number, since 3×22274865³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (22274869) 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 15 ways as a sum of consecutive naturals, for example, 82365 + ... + 82634.

It is an arithmetic number, because the mean of its divisors is an integer number (2475000).

Almost surely, 2^22274865 is an apocalyptic number.

It is an amenable number.

22274865 is a deficient number, since it is larger than the sum of its proper divisors (17325135).

22274865 is a wasteful number, since it uses less digits than its factorization.

22274865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165013 (or 165007 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 22274865 is about 4719.6255148052. The cubic root of 22274865 is about 281.3660498865.

The spelling of 22274865 in words is "twenty-two million, two hundred seventy-four thousand, eight hundred sixty-five".