11538318 has 48 divisors (see below), whose sum is σ = 26506368. Its totient is φ = 3339600.

The previous prime is 11538311. The next prime is 11538323. The reversal of 11538318 is 81383511.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11538311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16353 + ... + 17043.

It is an arithmetic number, because the mean of its divisors is an integer number (552216).

Almost surely, 2^11538318 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11538318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13253184).

11538318 is an abundant number, since it is smaller than the sum of its proper divisors (14968050).

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

11538318 is a wasteful number, since it uses less digits than its factorization.

11538318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741 (or 730 counting only the distinct ones).

The product of its digits is 2880, while the sum is 30.

The square root of 11538318 is about 3396.8099740786. The cubic root of 11538318 is about 225.9682911631.

The spelling of 11538318 in words is "eleven million, five hundred thirty-eight thousand, three hundred eighteen".