11133432 has 48 divisors (see below), whose sum is σ = 30471480. Its totient is φ = 3672000.

The previous prime is 11133413. The next prime is 11133443. The reversal of 11133432 is 23433111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 6507 + ... + 8037.

Almost surely, 2^11133432 is an apocalyptic number.

11133432 is a gapful number since it is divisible by the number (12) 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 11133432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15235740).

11133432 is an abundant number, since it is smaller than the sum of its proper divisors (19338048).

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

11133432 is a wasteful number, since it uses less digits than its factorization.

11133432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644 (or 1637 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 11133432 is about 3336.6797868540. The cubic root of 11133432 is about 223.2936401327.

Adding to 11133432 its reverse (23433111), we get a palindrome (34566543).

The spelling of 11133432 in words is "eleven million, one hundred thirty-three thousand, four hundred thirty-two".