23530288 has 40 divisors (see below), whose sum is σ = 48711168. Its totient is φ = 10984512.

The previous prime is 23530259. The next prime is 23530307. The reversal of 23530288 is 88203532.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15081 + ... + 16567.

Almost surely, 2^23530288 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 23530288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24355584).

23530288 is an abundant number, since it is smaller than the sum of its proper divisors (25180880).

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

23530288 is a wasteful number, since it uses less digits than its factorization.

23530288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561 (or 1555 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 23530288 is about 4850.8028201526. The cubic root of 23530288 is about 286.5557193400. Note that the first 3 decimals are identical.

The spelling of 23530288 in words is "twenty-three million, five hundred thirty thousand, two hundred eighty-eight".