11518860 has 96 divisors (see below), whose sum is σ = 35707392. Its totient is φ = 2759680.

The previous prime is 11518853. The next prime is 11518867. The reversal of 11518860 is 6881511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11518853) and next prime (11518867).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (11518867) 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 31 ways as a sum of consecutive naturals, for example, 23215 + ... + 23705.

It is an arithmetic number, because the mean of its divisors is an integer number (371952).

Almost surely, 2^11518860 is an apocalyptic number.

11518860 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 11518860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17853696).

11518860 is an abundant number, since it is smaller than the sum of its proper divisors (24188532).

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

11518860 is a wasteful number, since it uses less digits than its factorization.

11518860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 30.

The square root of 11518860 is about 3393.9446076800. The cubic root of 11518860 is about 225.8411968171.

It can be divided in two parts, 1151 and 8860, that added together give a triangular number (10011 = T₁₄₁).

The spelling of 11518860 in words is "eleven million, five hundred eighteen thousand, eight hundred sixty".