1113344428 has 24 divisors (see below), whose sum is σ = 2263195424. Its totient is φ = 469324800.

The previous prime is 1113344359. The next prime is 1113344429. The reversal of 1113344428 is 8244433111.

It is a self number, because there is not a number n which added to its sum of digits gives 1113344428.

It is not an unprimeable number, because it can be changed into a prime (1113344429) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 324213 + ... + 327628.

Almost surely, 2^1113344428 is an apocalyptic number.

It is an amenable number.

1113344428 is an abundant number, since it is smaller than the sum of its proper divisors (1149850996).

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

1113344428 is a wasteful number, since it uses less digits than its factorization.

1113344428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651913 (or 651911 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 1113344428 is about 33366.8162700609. The cubic root of 1113344428 is about 1036.4376477144.

Adding to 1113344428 its reverse (8244433111), we get a palindrome (9357777539).

The spelling of 1113344428 in words is "one billion, one hundred thirteen million, three hundred forty-four thousand, four hundred twenty-eight".