23530239 has 6 divisors (see below), whose sum is σ = 33988136. Its totient is φ = 15686820.

The previous prime is 23530231. The next prime is 23530253. The reversal of 23530239 is 93203532.

It is not a de Polignac number, because 23530239 - 2³ = 23530231 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 (23530231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1307227 + ... + 1307244.

Almost surely, 2^23530239 is an apocalyptic number.

23530239 is a deficient number, since it is larger than the sum of its proper divisors (10457897).

23530239 is a wasteful number, since it uses less digits than its factorization.

23530239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2614477 (or 2614474 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 27.

The square root of 23530239 is about 4850.7977694396. The cubic root of 23530239 is about 286.5555204298. Note that the first 4 decimals are identical.

The spelling of 23530239 in words is "twenty-three million, five hundred thirty thousand, two hundred thirty-nine".