1116428544 has 648 divisors, whose sum is σ = 4362059520. Its totient is φ = 270950400.

The previous prime is 1116428473. The next prime is 1116428557. The reversal of 1116428544 is 4458246111.

1116428544 is a `hidden beast` number, since 1 + 1 + 1 + 642 + 8 + 5 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1116428499 and 1116428508.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 36013809 + ... + 36013839.

Almost surely, 2^1116428544 is an apocalyptic number.

1116428544 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 1116428544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2181029760).

1116428544 is an abundant number, since it is smaller than the sum of its proper divisors (3245630976).

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

1116428544 is a wasteful number, since it uses less digits than its factorization.

1116428544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107 (or 83 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 1116428544 is about 33412.9996258941. Note that the first 3 decimals coincide. The cubic root of 1116428544 is about 1037.3937899501.

The spelling of 1116428544 in words is "one billion, one hundred sixteen million, four hundred twenty-eight thousand, five hundred forty-four".