11530340 has 36 divisors (see below), whose sum is σ = 25571196. Its totient is φ = 4366656.

The previous prime is 11530339. The next prime is 11530367. The reversal of 11530340 is 4303511.

It can be written as a sum of positive squares in 2 ways, for example, as 3189796 + 8340544 = 1786^2 + 2888^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6422 + ... + 8018.

It is an arithmetic number, because the mean of its divisors is an integer number (710311).

Almost surely, 2^11530340 is an apocalyptic number.

11530340 is a gapful number since it is divisible by the number (10) 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 11530340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12785598).

11530340 is an abundant number, since it is smaller than the sum of its proper divisors (14040856).

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

11530340 is a wasteful number, since it uses less digits than its factorization.

11530340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644 (or 1623 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 11530340 is about 3395.6354339063. The cubic root of 11530340 is about 225.9161983396.

Adding to 11530340 its reverse (4303511), we get a palindrome (15833851).

The spelling of 11530340 in words is "eleven million, five hundred thirty thousand, three hundred forty".