22275309 has 16 divisors (see below), whose sum is σ = 34501760. Its totient is φ = 12519360.

The previous prime is 22275269. The next prime is 22275313. The reversal of 22275309 is 90357222.

It is a happy number.

22275309 is nontrivially palindromic in base 13.

It is not a de Polignac number, because 22275309 - 2⁷ = 22275181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22273309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7414 + ... + 9975.

It is an arithmetic number, because the mean of its divisors is an integer number (2156360).

Almost surely, 2^22275309 is an apocalyptic number.

It is an amenable number.

22275309 is a deficient number, since it is larger than the sum of its proper divisors (12226451).

22275309 is a wasteful number, since it uses less digits than its factorization.

22275309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17460.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 22275309 is about 4719.6725522011. The cubic root of 22275309 is about 281.3679193433.

The spelling of 22275309 in words is "twenty-two million, two hundred seventy-five thousand, three hundred nine".