23040321 has 8 divisors (see below), whose sum is σ = 32527584. Its totient is φ = 14456640.

The previous prime is 23040301. The next prime is 23040349. The reversal of 23040321 is 12304032.

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

It is not a de Polignac number, because 23040321 - 2⁵ = 23040289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23040321.

It is not an unprimeable number, because it can be changed into a prime (23040301) 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, 225835 + ... + 225936.

It is an arithmetic number, because the mean of its divisors is an integer number (4065948).

Almost surely, 2^23040321 is an apocalyptic number.

It is an amenable number.

23040321 is a deficient number, since it is larger than the sum of its proper divisors (9487263).

23040321 is a wasteful number, since it uses less digits than its factorization.

23040321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451791.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 23040321 is about 4800.0334373835. The cubic root of 23040321 is about 284.5527858377.

Adding to 23040321 its reverse (12304032), we get a palindrome (35344353).

The spelling of 23040321 in words is "twenty-three million, forty thousand, three hundred twenty-one".