23118404 has 12 divisors (see below), whose sum is σ = 42216384. Its totient is φ = 11056584.

The previous prime is 23118401. The next prime is 23118457. The reversal of 23118404 is 40481132.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 23118404.

It is not an unprimeable number, because it can be changed into a prime (23118401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125552 + ... + 125735.

It is an arithmetic number, because the mean of its divisors is an integer number (3518032).

Almost surely, 2^23118404 is an apocalyptic number.

It is an amenable number.

23118404 is a deficient number, since it is larger than the sum of its proper divisors (19097980).

23118404 is a wasteful number, since it uses less digits than its factorization.

23118404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251314 (or 251312 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 23118404 is about 4808.1601470833. The cubic root of 23118404 is about 284.8738705247.

Adding to 23118404 its reverse (40481132), we get a palindrome (63599536).

The spelling of 23118404 in words is "twenty-three million, one hundred eighteen thousand, four hundred four".