23405304 has 32 divisors (see below), whose sum is σ = 63015120. Its totient is φ = 7201536.

The previous prime is 23405293. The next prime is 23405357. The reversal of 23405304 is 40350432.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37197 + ... + 37820.

Almost surely, 2^23405304 is an apocalyptic number.

23405304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23405304 is an abundant number, since it is smaller than the sum of its proper divisors (39609816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23405304 is a wasteful number, since it uses less digits than its factorization.

23405304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75039 (or 75035 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 23405304 is about 4837.9028514430. The cubic root of 23405304 is about 286.0474598078.

Adding to 23405304 its reverse (40350432), we get a palindrome (63755736).

The spelling of 23405304 in words is "twenty-three million, four hundred five thousand, three hundred four".