1113444444 has 288 divisors, whose sum is σ = 3474938880. Its totient is φ = 274864128.

The previous prime is 1113444413. The next prime is 1113444463. The reversal of 1113444444 is 4444443111.

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

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6667249 + ... + 6667415.

It is an arithmetic number, because the mean of its divisors is an integer number (12065760).

Almost surely, 2^1113444444 is an apocalyptic number.

1113444444 is a gapful number since it is divisible by the number (14) 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 1113444444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1737469440).

1113444444 is an abundant number, since it is smaller than the sum of its proper divisors (2361494436).

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

1113444444 is a wasteful number, since it uses less digits than its factorization.

1113444444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 248 counting only the distinct ones).

The product of its digits is 12288, while the sum is 30.

The square root of 1113444444 is about 33368.3149709421. The cubic root of 1113444444 is about 1036.4686825081.

Adding to 1113444444 its reverse (4444443111), we get a palindrome (5557887555).

The spelling of 1113444444 in words is "one billion, one hundred thirteen million, four hundred forty-four thousand, four hundred forty-four".