23204403 has 6 divisors (see below), whose sum is σ = 33517484. Its totient is φ = 15469596.

The previous prime is 23204387. The next prime is 23204411. The reversal of 23204403 is 30440232.

It is not a de Polignac number, because 23204403 - 2⁴ = 23204387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23204003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1289125 + ... + 1289142.

Almost surely, 2^23204403 is an apocalyptic number.

23204403 is a deficient number, since it is larger than the sum of its proper divisors (10313081).

23204403 is a wasteful number, since it uses less digits than its factorization.

23204403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2578273 (or 2578270 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 23204403 is about 4817.0948713929. The cubic root of 23204403 is about 285.2266710113.

Adding to 23204403 its reverse (30440232), we get a palindrome (53644635).

The spelling of 23204403 in words is "twenty-three million, two hundred four thousand, four hundred three".