11413188 has 54 divisors (see below), whose sum is σ = 30674826. Its totient is φ = 3577344.

The previous prime is 11413187. The next prime is 11413217. The reversal of 11413188 is 88131411.

It can be written as a sum of positive squares in 3 ways, for example, as 3392964 + 8020224 = 1842^2 + 2832^2 .

It is not an unprimeable number, because it can be changed into a prime (11413187) 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 17 ways as a sum of consecutive naturals, for example, 9856 + ... + 10952.

Almost surely, 2^11413188 is an apocalyptic number.

11413188 is a gapful number since it is divisible by the number (18) 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 11413188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15337413).

11413188 is an abundant number, since it is smaller than the sum of its proper divisors (19261638).

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

11413188 is a wasteful number, since it uses less digits than its factorization.

11413188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141 (or 1119 counting only the distinct ones).

The product of its digits is 768, while the sum is 27.

The square root of 11413188 is about 3378.3410129826. The cubic root of 11413188 is about 225.1484649776.

Adding to 11413188 its reverse (88131411), we get a palindrome (99544599).

The spelling of 11413188 in words is "eleven million, four hundred thirteen thousand, one hundred eighty-eight".