23404413 has 4 divisors (see below), whose sum is σ = 31205888. Its totient is φ = 15602940.

The previous prime is 23404391. The next prime is 23404417. The reversal of 23404413 is 31440432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23404413 - 2²² = 19210109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23404413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23404417) 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, 3900733 + ... + 3900738.

It is an arithmetic number, because the mean of its divisors is an integer number (7801472).

Almost surely, 2^23404413 is an apocalyptic number.

It is an amenable number.

23404413 is a deficient number, since it is larger than the sum of its proper divisors (7801475).

23404413 is an equidigital number, since it uses as much as digits as its factorization.

23404413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7801474.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 23404413 is about 4837.8107652119. The cubic root of 23404413 is about 286.0438299821.

Adding to 23404413 its reverse (31440432), we get a palindrome (54844845).

The spelling of 23404413 in words is "twenty-three million, four hundred four thousand, four hundred thirteen".