23118528 has 42 divisors (see below), whose sum is σ = 61344556. Its totient is φ = 7683968.

The previous prime is 23118517. The next prime is 23118559. The reversal of 23118528 is 82581132.

It is a junction number, because it is equal to n+sod(n) for n = 23118495 and 23118504.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66451 + ... + 66797.

Almost surely, 2^23118528 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 23118528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30672278).

23118528 is an abundant number, since it is smaller than the sum of its proper divisors (38226028).

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

23118528 is an frugal number, since it uses more digits than its factorization.

23118528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709 (or 352 counting only the distinct ones).

The product of its digits is 3840, while the sum is 30.

The square root of 23118528 is about 4808.1730418112. The cubic root of 23118528 is about 284.8743798491.

The spelling of 23118528 in words is "twenty-three million, one hundred eighteen thousand, five hundred twenty-eight".