23240005 has 8 divisors (see below), whose sum is σ = 29100672. Its totient is φ = 17783568.

The previous prime is 23239981. The next prime is 23240011. The reversal of 23240005 is 50004232.

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 23240005 - 2⁵ = 23239973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100929 + ... + 101158.

It is an arithmetic number, because the mean of its divisors is an integer number (3637584).

Almost surely, 2^23240005 is an apocalyptic number.

It is an amenable number.

23240005 is a deficient number, since it is larger than the sum of its proper divisors (5860667).

23240005 is a wasteful number, since it uses less digits than its factorization.

23240005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202115.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 23240005 is about 4820.7888358649. The cubic root of 23240005 is about 285.3724687868.

Adding to 23240005 its reverse (50004232), we get a palindrome (73244237).

The spelling of 23240005 in words is "twenty-three million, two hundred forty thousand, five".