23240939 has 8 divisors (see below), whose sum is σ = 23800560. Its totient is φ = 22687200.

The previous prime is 23240929. The next prime is 23240947. The reversal of 23240939 is 93904232.

23240939 = 587² + 588² + ... + 647².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23240939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23240929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7109 + ... + 9849.

It is an arithmetic number, because the mean of its divisors is an integer number (2975070).

Almost surely, 2^23240939 is an apocalyptic number.

23240939 is a deficient number, since it is larger than the sum of its proper divisors (559621).

23240939 is a wasteful number, since it uses less digits than its factorization.

23240939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2941.

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

The square root of 23240939 is about 4820.8857070045. The cubic root of 23240939 is about 285.3762917107.

The spelling of 23240939 in words is "twenty-three million, two hundred forty thousand, nine hundred thirty-nine".