23028288 has 112 divisors (see below), whose sum is σ = 64958976. Its totient is φ = 7188480.

The previous prime is 23028287. The next prime is 23028301. The reversal of 23028288 is 88282032.

It is not an unprimeable number, because it can be changed into a prime (23028287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315420 + ... + 315492.

Almost surely, 2^23028288 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 23028288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32479488).

23028288 is an abundant number, since it is smaller than the sum of its proper divisors (41930688).

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

23028288 is a wasteful number, since it uses less digits than its factorization.

23028288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 23028288 is about 4798.7798449189. The cubic root of 23028288 is about 284.5032405222.

The spelling of 23028288 in words is "twenty-three million, twenty-eight thousand, two hundred eighty-eight".