1188000 has 192 divisors, whose sum is σ = 4717440. Its totient is φ = 288000.

The previous prime is 1187999. The next prime is 1188001. The reversal of 1188000 is 8811.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1187999) and next prime (1188001).

It is a super-2 number, since 2×1188000² = 2822688000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1188001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107995 + ... + 108005.

It is an arithmetic number, because the mean of its divisors is an integer number (24570).

2^1188000 is an apocalyptic number.

1188000 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 1188000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2358720).

1188000 is an abundant number, since it is smaller than the sum of its proper divisors (3529440).

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

1188000 is a wasteful number, since it uses less digits than its factorization.

1188000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45 (or 21 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 1188000 is about 1089.9541274751. The cubic root of 1188000 is about 105.9104500598.

It can be divided in two parts, 118 and 8000, that added together give a palindrome (8118).

The spelling of 1188000 in words is "one million, one hundred eighty-eight thousand".