22428259 has 8 divisors (see below), whose sum is σ = 26178048. Its totient is φ = 18814920.

The previous prime is 22428257. The next prime is 22428269. The reversal of 22428259 is 95282422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22428259 - 2¹ = 22428257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22428257) 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 7 ways as a sum of consecutive naturals, for example, 33757 + ... + 34414.

It is an arithmetic number, because the mean of its divisors is an integer number (3272256).

Almost surely, 2^22428259 is an apocalyptic number.

22428259 is a deficient number, since it is larger than the sum of its proper divisors (3749789).

22428259 is an equidigital number, since it uses as much as digits as its factorization.

22428259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68225.

The product of its digits is 23040, while the sum is 34.

The square root of 22428259 is about 4735.8482872660. The cubic root of 22428259 is about 282.0104409058.

It can be divided in two parts, 2242 and 8259, that added together give a palindrome (10501).

The spelling of 22428259 in words is "twenty-two million, four hundred twenty-eight thousand, two hundred fifty-nine".