11280528 has 180 divisors, whose sum is σ = 39307008. Its totient is φ = 2954880.

The previous prime is 11280527. The next prime is 11280569. The reversal of 11280528 is 82508211.

It is not an unprimeable number, because it can be changed into a prime (11280527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 363873 + ... + 363903.

Almost surely, 2^11280528 is an apocalyptic number.

11280528 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 11280528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19653504).

11280528 is an abundant number, since it is smaller than the sum of its proper divisors (28026480).

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

11280528 is a wasteful number, since it uses less digits than its factorization.

11280528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90 (or 62 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 11280528 is about 3358.6497286856. The cubic root of 11280528 is about 224.2727332725.

Adding to 11280528 its reverse (82508211), we get a palindrome (93788739).

The spelling of 11280528 in words is "eleven million, two hundred eighty thousand, five hundred twenty-eight".