23104405 has 4 divisors (see below), whose sum is σ = 27725292. Its totient is φ = 18483520.

The previous prime is 23104381. The next prime is 23104409. The reversal of 23104405 is 50440132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2683044 + 20421361 = 1638^2 + 4519^2 .

It is not a de Polignac number, because 23104405 - 2⁹ = 23103893 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 (23104409) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2310436 + ... + 2310445.

It is an arithmetic number, because the mean of its divisors is an integer number (6931323).

Almost surely, 2^23104405 is an apocalyptic number.

It is an amenable number.

23104405 is a deficient number, since it is larger than the sum of its proper divisors (4620887).

23104405 is an equidigital number, since it uses as much as digits as its factorization.

23104405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4620886.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 23104405 is about 4806.7041722994. The cubic root of 23104405 is about 284.8163585596.

Adding to 23104405 its reverse (50440132), we get a palindrome (73544537).

The spelling of 23104405 in words is "twenty-three million, one hundred four thousand, four hundred five".