23120928 has 72 divisors (see below), whose sum is σ = 67315248. Its totient is φ = 7523712.

The previous prime is 23120927. The next prime is 23120941. The reversal of 23120928 is 82902132.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (23120921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11451 + ... + 13317.

It is an arithmetic number, because the mean of its divisors is an integer number (934934).

Almost surely, 2^23120928 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 23120928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33657624).

23120928 is an abundant number, since it is smaller than the sum of its proper divisors (44194320).

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

23120928 is a wasteful number, since it uses less digits than its factorization.

23120928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926 (or 1915 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 23120928 is about 4808.4226103786. The cubic root of 23120928 is about 284.8842373806.

The spelling of 23120928 in words is "twenty-three million, one hundred twenty thousand, nine hundred twenty-eight".