1113543444 has 48 divisors (see below), whose sum is σ = 2800824320. Its totient is φ = 342299520.

The previous prime is 1113543439. The next prime is 1113543449. The reversal of 1113543444 is 4443453111.

It is an interprime number because it is at equal distance from previous prime (1113543439) and next prime (1113543449).

It is a super-2 number, since 2×1113543444² = 2479958003350762272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113543449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196734 + ... + 202314.

Almost surely, 2^1113543444 is an apocalyptic number.

It is an amenable number.

1113543444 is an abundant number, since it is smaller than the sum of its proper divisors (1687280876).

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

1113543444 is a wasteful number, since it uses less digits than its factorization.

1113543444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6880 (or 6878 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 1113543444 is about 33369.7983811710. The cubic root of 1113543444 is about 1036.4994002085.

Adding to 1113543444 its reverse (4443453111), we get a palindrome (5556996555).

The spelling of 1113543444 in words is "one billion, one hundred thirteen million, five hundred forty-three thousand, four hundred forty-four".