23409239 has 8 divisors (see below), whose sum is σ = 27916800. Its totient is φ = 19192536.

The previous prime is 23409233. The next prime is 23409263. The reversal of 23409239 is 93290432.

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 23409239 - 2⁴ = 23409223 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 (23409233) 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, 72539 + ... + 72860.

It is an arithmetic number, because the mean of its divisors is an integer number (3489600).

Almost surely, 2^23409239 is an apocalyptic number.

23409239 is a deficient number, since it is larger than the sum of its proper divisors (4507561).

23409239 is a wasteful number, since it uses less digits than its factorization.

23409239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145429.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 23409239 is about 4838.3095188299. The cubic root of 23409239 is about 286.0634894177.

The spelling of 23409239 in words is "twenty-three million, four hundred nine thousand, two hundred thirty-nine".