23304309 has 16 divisors (see below), whose sum is σ = 35840640. Its totient is φ = 13193280.

The previous prime is 23304299. The next prime is 23304319. The reversal of 23304309 is 90340332.

It is an interprime number because it is at equal distance from previous prime (23304299) and next prime (23304319).

It is not a de Polignac number, because 23304309 - 2⁷ = 23304181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23304319) 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 15 ways as a sum of consecutive naturals, for example, 2802 + ... + 7379.

It is an arithmetic number, because the mean of its divisors is an integer number (2240040).

Almost surely, 2^23304309 is an apocalyptic number.

It is an amenable number.

23304309 is a deficient number, since it is larger than the sum of its proper divisors (12536331).

23304309 is a wasteful number, since it uses less digits than its factorization.

23304309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10300.

The product of its (nonzero) digits is 1944, while the sum is 24.

The square root of 23304309 is about 4827.4536766291. The cubic root of 23304309 is about 285.6354304647.

The spelling of 23304309 in words is "twenty-three million, three hundred four thousand, three hundred nine".