23113728 has 208 divisors, whose sum is σ = 78633600. Its totient is φ = 6635520.

The previous prime is 23113687. The next prime is 23113751. The reversal of 23113728 is 82731132.

It is a Harshad number since it is a multiple of its sum of digits (27).

Its product of digits (2016) is a multiple of the sum of its prime factors (63).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1216503 + ... + 1216521.

Almost surely, 2^23113728 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 23113728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39316800).

23113728 is an abundant number, since it is smaller than the sum of its proper divisors (55519872).

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

23113728 is a wasteful number, since it uses less digits than its factorization.

23113728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63 (or 35 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 23113728 is about 4807.6738658108. The cubic root of 23113728 is about 284.8546627392.

The spelling of 23113728 in words is "twenty-three million, one hundred thirteen thousand, seven hundred twenty-eight".