23521328 has 20 divisors (see below), whose sum is σ = 45994080. Its totient is φ = 11651904.

The previous prime is 23521327. The next prime is 23521339. The reversal of 23521328 is 82312532.

It is a junction number, because it is equal to n+sod(n) for n = 23521297 and 23521306.

It is not an unprimeable number, because it can be changed into a prime (23521327) 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, 5000 + ... + 8487.

It is an arithmetic number, because the mean of its divisors is an integer number (2299704).

Almost surely, 2^23521328 is an apocalyptic number.

It is an amenable number.

23521328 is a deficient number, since it is larger than the sum of its proper divisors (22472752).

23521328 is a wasteful number, since it uses less digits than its factorization.

23521328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13604 (or 13598 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 23521328 is about 4849.8791737527. The cubic root of 23521328 is about 286.5193426042.

The spelling of 23521328 in words is "twenty-three million, five hundred twenty-one thousand, three hundred twenty-eight".