11523660 has 48 divisors (see below), whose sum is σ = 32508000. Its totient is φ = 3049984.

The previous prime is 11523653. The next prime is 11523683. The reversal of 11523660 is 6632511.

It is a self number, because there is not a number n which added to its sum of digits gives 11523660.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8296 + ... + 9584.

It is an arithmetic number, because the mean of its divisors is an integer number (677250).

Almost surely, 2^11523660 is an apocalyptic number.

11523660 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 11523660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16254000).

11523660 is an abundant number, since it is smaller than the sum of its proper divisors (20984340).

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

11523660 is a wasteful number, since it uses less digits than its factorization.

11523660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450 (or 1448 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 11523660 is about 3394.6516757983. The cubic root of 11523660 is about 225.8725623980.

The spelling of 11523660 in words is "eleven million, five hundred twenty-three thousand, six hundred sixty".