28322269 has 8 divisors (see below), whose sum is σ = 29609280. Its totient is φ = 27039936.

The previous prime is 28322257. The next prime is 28322297. The reversal of 28322269 is 96222382.

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 28322269 - 2⁵ = 28322237 is a prime.

It is a super-2 number, since 2×28322269² = 1604301842616722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28322209) 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, 18277 + ... + 19765.

It is an arithmetic number, because the mean of its divisors is an integer number (3701160).

Almost surely, 2^28322269 is an apocalyptic number.

It is an amenable number.

28322269 is a deficient number, since it is larger than the sum of its proper divisors (1287011).

28322269 is a wasteful number, since it uses less digits than its factorization.

28322269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2339.

The product of its digits is 20736, while the sum is 34.

The square root of 28322269 is about 5321.8670595948. The cubic root of 28322269 is about 304.8194541963.

The spelling of 28322269 in words is "twenty-eight million, three hundred twenty-two thousand, two hundred sixty-nine".