23909148 has 48 divisors (see below), whose sum is σ = 63171360. Its totient is φ = 7817472.

The previous prime is 23909129. The next prime is 23909173. The reversal of 23909148 is 84190932.

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 15 ways as a sum of consecutive naturals, for example, 3636 + ... + 7812.

It is an arithmetic number, because the mean of its divisors is an integer number (1316070).

Almost surely, 2^23909148 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 23909148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31585680).

23909148 is an abundant number, since it is smaller than the sum of its proper divisors (39262212).

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

23909148 is a wasteful number, since it uses less digits than its factorization.

23909148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4243 (or 4235 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 23909148 is about 4889.6981501929. The cubic root of 23909148 is about 288.0854780999.

The spelling of 23909148 in words is "twenty-three million, nine hundred nine thousand, one hundred forty-eight".