1128873984 has 240 divisors, whose sum is σ = 3661515648. Its totient is φ = 301989888.

The previous prime is 1128873973. The next prime is 1128874003. The reversal of 1128873984 is 4893788211.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5848992 + ... + 5849184.

Almost surely, 2^1128873984 is an apocalyptic number.

1128873984 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 1128873984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1830757824).

1128873984 is an abundant number, since it is smaller than the sum of its proper divisors (2532641664).

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

1128873984 is an equidigital number, since it uses as much as digits as its factorization.

1128873984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248 (or 222 counting only the distinct ones).

The product of its digits is 774144, while the sum is 51.

The square root of 1128873984 is about 33598.7199756181. The cubic root of 1128873984 is about 1041.2343529347.

The spelling of 1128873984 in words is "one billion, one hundred twenty-eight million, eight hundred seventy-three thousand, nine hundred eighty-four".