22227385 has 4 divisors (see below), whose sum is σ = 26672868. Its totient is φ = 17781904.

The previous prime is 22227383. The next prime is 22227391. The reversal of 22227385 is 58372222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10137856 + 12089529 = 3184^2 + 3477^2 .

It is a cyclic number.

It is not a de Polignac number, because 22227385 - 2¹ = 22227383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22227383) 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 3 ways as a sum of consecutive naturals, for example, 2222734 + ... + 2222743.

It is an arithmetic number, because the mean of its divisors is an integer number (6668217).

Almost surely, 2^22227385 is an apocalyptic number.

It is an amenable number.

22227385 is a deficient number, since it is larger than the sum of its proper divisors (4445483).

22227385 is an equidigital number, since it uses as much as digits as its factorization.

22227385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4445482.

The product of its digits is 13440, while the sum is 31.

The square root of 22227385 is about 4714.5927713855. The cubic root of 22227385 is about 281.1659923585.

The spelling of 22227385 in words is "twenty-two million, two hundred twenty-seven thousand, three hundred eighty-five".