23023728 has 180 divisors, whose sum is σ = 81041688. Its totient is φ = 6048000.

The previous prime is 23023727. The next prime is 23023739. The reversal of 23023728 is 82732032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23023727) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 91603 + ... + 91853.

Almost surely, 2^23023728 is an apocalyptic number.

23023728 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23023728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40520844).

23023728 is an abundant number, since it is smaller than the sum of its proper divisors (58017960).

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

23023728 is a wasteful number, since it uses less digits than its factorization.

23023728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 23023728 is about 4798.3047006208. The cubic root of 23023728 is about 284.4844604257.

The spelling of 23023728 in words is "twenty-three million, twenty-three thousand, seven hundred twenty-eight".