1188378 has 32 divisors (see below), whose sum is σ = 2692800. Its totient is φ = 388368.

The previous prime is 1188377. The next prime is 1188389. The reversal of 1188378 is 8738811.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1188377) by changing a digit.

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, 3000 + ... + 3372.

It is an arithmetic number, because the mean of its divisors is an integer number (84150).

2^1188378 is an apocalyptic number.

1188378 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1188378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1346400).

1188378 is an abundant number, since it is smaller than the sum of its proper divisors (1504422).

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

1188378 is a wasteful number, since it uses less digits than its factorization.

1188378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443 (or 437 counting only the distinct ones).

The product of its digits is 10752, while the sum is 36.

The square root of 1188378 is about 1090.1275154770. The cubic root of 1188378 is about 105.9216817951.

The spelling of 1188378 in words is "one million, one hundred eighty-eight thousand, three hundred seventy-eight".