1188478000 has 160 divisors (see below), whose sum is σ = 3073374720. Its totient is φ = 443520000.

The previous prime is 1188477977. The next prime is 1188478003. The reversal of 1188478000 is 8748811.

It is not an unprimeable number, because it can be changed into a prime (1188478003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1797670 + ... + 1798330.

It is an arithmetic number, because the mean of its divisors is an integer number (19208592).

Almost surely, 2^1188478000 is an apocalyptic number.

1188478000 is a gapful number since it is divisible by the number (10) 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 1188478000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1536687360).

1188478000 is an abundant number, since it is smaller than the sum of its proper divisors (1884896720).

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

1188478000 is a wasteful number, since it uses less digits than its factorization.

1188478000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744 (or 728 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 37.

The square root of 1188478000 is about 34474.3092751690. The cubic root of 1188478000 is about 1059.2465275531.

The spelling of 1188478000 in words is "one billion, one hundred eighty-eight million, four hundred seventy-eight thousand".