22256465 has 16 divisors (see below), whose sum is σ = 33298560. Its totient is φ = 13873920.

The previous prime is 22256453. The next prime is 22256471. The reversal of 22256465 is 56465222.

It is not a de Polignac number, because 22256465 - 2⁶ = 22256401 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 28520 + ... + 29289.

It is an arithmetic number, because the mean of its divisors is an integer number (2081160).

Almost surely, 2^22256465 is an apocalyptic number.

It is an amenable number.

22256465 is a deficient number, since it is larger than the sum of its proper divisors (11042095).

22256465 is a wasteful number, since it uses less digits than its factorization.

22256465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57832.

The product of its digits is 28800, while the sum is 32.

The square root of 22256465 is about 4717.6758048853. The cubic root of 22256465 is about 281.2885550437.

The spelling of 22256465 in words is "twenty-two million, two hundred fifty-six thousand, four hundred sixty-five".