23409888 has 96 divisors (see below), whose sum is σ = 64665216. Its totient is φ = 7408128.

The previous prime is 23409887. The next prime is 23409913. The reversal of 23409888 is 88890432.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23409887) 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 15 ways as a sum of consecutive naturals, for example, 218731 + ... + 218837.

It is an arithmetic number, because the mean of its divisors is an integer number (673596).

Almost surely, 2^23409888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23409888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32332608).

23409888 is an abundant number, since it is smaller than the sum of its proper divisors (41255328).

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

23409888 is a wasteful number, since it uses less digits than its factorization.

23409888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 23409888 is about 4838.3765872449. The cubic root of 23409888 is about 286.0661330105.

The spelling of 23409888 in words is "twenty-three million, four hundred nine thousand, eight hundred eighty-eight".