23286528 has 90 divisors (see below), whose sum is σ = 69498044. Its totient is φ = 7755264.

The previous prime is 23286469. The next prime is 23286539. The reversal of 23286528 is 82568232.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 23286492 and 23286501.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 20175 + ... + 21297.

Almost surely, 2^23286528 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 23286528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34749022).

23286528 is an abundant number, since it is smaller than the sum of its proper divisors (46211516).

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

23286528 is an equidigital number, since it uses as much as digits as its factorization.

23286528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151 (or 1128 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 23286528 is about 4825.6116710734. The cubic root of 23286528 is about 285.5627661368.

The spelling of 23286528 in words is "twenty-three million, two hundred eighty-six thousand, five hundred twenty-eight".