13089528 has 48 divisors (see below), whose sum is σ = 35736480. Its totient is φ = 4328064.

The previous prime is 13089521. The next prime is 13089529. The reversal of 13089528 is 82598031.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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 = 13089492 and 13089501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13089521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9201 + ... + 10527.

It is an arithmetic number, because the mean of its divisors is an integer number (744510).

Almost surely, 2^13089528 is an apocalyptic number.

13089528 is a gapful number since it is divisible by the number (18) 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 13089528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17868240).

13089528 is an abundant number, since it is smaller than the sum of its proper divisors (22646952).

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

13089528 is a wasteful number, since it uses less digits than its factorization.

13089528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476 (or 1469 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 13089528 is about 3617.9452732179. The cubic root of 13089528 is about 235.6720043800.

The spelling of 13089528 in words is "thirteen million, eighty-nine thousand, five hundred twenty-eight".