11530388 has 12 divisors (see below), whose sum is σ = 20829312. Its totient is φ = 5579160.

The previous prime is 11530381. The next prime is 11530391. The reversal of 11530388 is 88303511.

It is a self number, because there is not a number n which added to its sum of digits gives 11530388.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11530381) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 46370 + ... + 46617.

It is an arithmetic number, because the mean of its divisors is an integer number (1735776).

Almost surely, 2^11530388 is an apocalyptic number.

It is an amenable number.

11530388 is a deficient number, since it is larger than the sum of its proper divisors (9298924).

11530388 is a wasteful number, since it uses less digits than its factorization.

11530388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93022 (or 93020 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 11530388 is about 3395.6425017955. The cubic root of 11530388 is about 225.9165118303.

Adding to 11530388 its reverse (88303511), we get a palindrome (99833899).

It can be divided in two parts, 115 and 30388, that added together give a palindrome (30503).

The spelling of 11530388 in words is "eleven million, five hundred thirty thousand, three hundred eighty-eight".