1188368 has 30 divisors (see below), whose sum is σ = 2455386. Its totient is φ = 557056.

The previous prime is 1188361. The next prime is 1188377. The reversal of 1188368 is 8638811.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 861184 + 327184 = 928^2 + 572^2 .

It is a super-4 number, since 4×1188368⁴ (a number of 25 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1188361) 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 5 ways as a sum of consecutive naturals, for example, 4496 + ... + 4752.

2^1188368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1188368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1227693).

1188368 is an abundant number, since it is smaller than the sum of its proper divisors (1267018).

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

1188368 is a wasteful number, since it uses less digits than its factorization.

1188368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299 (or 276 counting only the distinct ones).

The product of its digits is 9216, while the sum is 35.

The square root of 1188368 is about 1090.1229288479. The cubic root of 1188368 is about 105.9213846900.

The spelling of 1188368 in words is "one million, one hundred eighty-eight thousand, three hundred sixty-eight".