23505888 has 144 divisors (see below), whose sum is σ = 75841920. Its totient is φ = 6338304.

The previous prime is 23505887. The next prime is 23505893. The reversal of 23505888 is 88850532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23505887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89245 + ... + 89507.

It is an arithmetic number, because the mean of its divisors is an integer number (526680).

Almost surely, 2^23505888 is an apocalyptic number.

23505888 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23505888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37920960).

23505888 is an abundant number, since it is smaller than the sum of its proper divisors (52336032).

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

23505888 is a wasteful number, since it uses less digits than its factorization.

23505888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 39.

The square root of 23505888 is about 4848.2871202106. The cubic root of 23505888 is about 286.4566360118.

The spelling of 23505888 in words is "twenty-three million, five hundred five thousand, eight hundred eighty-eight".