1113544432 has 160 divisors (see below), whose sum is σ = 2918813184. Its totient is φ = 397440000.

The previous prime is 1113544403. The next prime is 1113544441. The reversal of 1113544432 is 2344453111.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 1113544432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4019878 + ... + 4020154.

Almost surely, 2^1113544432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1113544432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1459406592).

1113544432 is an abundant number, since it is smaller than the sum of its proper divisors (1805268752).

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

1113544432 is a wasteful number, since it uses less digits than its factorization.

1113544432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567 (or 561 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 1113544432 is about 33369.8131849730. The cubic root of 1113544432 is about 1036.4997067557.

Adding to 1113544432 its reverse (2344453111), we get a palindrome (3457997543).

It can be divided in two parts, 1113 and 544432, that added together give a palindrome (545545).

The spelling of 1113544432 in words is "one billion, one hundred thirteen million, five hundred forty-four thousand, four hundred thirty-two".