23505328 has 40 divisors (see below), whose sum is σ = 56782080. Its totient is φ = 9157440.

The previous prime is 23505319. The next prime is 23505353. The reversal of 23505328 is 82350532.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 23505296 and 23505305.

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, 8308 + ... + 10771.

It is an arithmetic number, because the mean of its divisors is an integer number (1419552).

Almost surely, 2^23505328 is an apocalyptic number.

23505328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

23505328 is an abundant number, since it is smaller than the sum of its proper divisors (33276752).

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

23505328 is a wasteful number, since it uses less digits than its factorization.

23505328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19105 (or 19099 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 23505328 is about 4848.2293675114. The cubic root of 23505328 is about 286.4543611635.

The spelling of 23505328 in words is "twenty-three million, five hundred five thousand, three hundred twenty-eight".