23040065 has 16 divisors (see below), whose sum is σ = 30110400. Its totient is φ = 16857792.

The previous prime is 23040047. The next prime is 23040071. The reversal of 23040065 is 56004032.

It is a cyclic number.

It is not a de Polignac number, because 23040065 - 2¹⁰ = 23039041 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1427 + ... + 6936.

It is an arithmetic number, because the mean of its divisors is an integer number (1881900).

Almost surely, 2^23040065 is an apocalyptic number.

It is an amenable number.

23040065 is a deficient number, since it is larger than the sum of its proper divisors (7070335).

23040065 is a wasteful number, since it uses less digits than its factorization.

23040065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8416.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 23040065 is about 4800.0067708286. The cubic root of 23040065 is about 284.5517319493.

Adding to 23040065 its reverse (56004032), we get a palindrome (79044097).

The spelling of 23040065 in words is "twenty-three million, forty thousand, sixty-five".