11530240 has 52 divisors (see below), whose sum is σ = 27718344. Its totient is φ = 4603904.

The previous prime is 11530229. The next prime is 11530249. The reversal of 11530240 is 4203511.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11530249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20199 + ... + 20761.

Almost surely, 2^11530240 is an apocalyptic number.

11530240 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 11530240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13859172).

11530240 is an abundant number, since it is smaller than the sum of its proper divisors (16188104).

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

11530240 is an frugal number, since it uses more digits than its factorization.

11530240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592 (or 570 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 11530240 is about 3395.6207090899. The cubic root of 11530240 is about 225.9155452313.

Adding to 11530240 its reverse (4203511), we get a palindrome (15733751).

The spelling of 11530240 in words is "eleven million, five hundred thirty thousand, two hundred forty".