23009688 has 144 divisors (see below), whose sum is σ = 70799040. Its totient is φ = 6739200.

The previous prime is 23009669. The next prime is 23009699. The reversal of 23009688 is 88690032.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 377178 + ... + 377238.

It is an arithmetic number, because the mean of its divisors is an integer number (491660).

Almost surely, 2^23009688 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 23009688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35399520).

23009688 is an abundant number, since it is smaller than the sum of its proper divisors (47789352).

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

23009688 is a wasteful number, since it uses less digits than its factorization.

23009688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 110 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 23009688 is about 4796.8414607948. The cubic root of 23009688 is about 284.4266219211.

The spelling of 23009688 in words is "twenty-three million, nine thousand, six hundred eighty-eight".