1188648 has 32 divisors (see below), whose sum is σ = 3302400. Its totient is φ = 396144.

The previous prime is 1188637. The next prime is 1188653. The reversal of 1188648 is 8468811.

1188648 is a `hidden beast` number, since 1 + 1 + 8 + 8 + 648 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

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 7 ways as a sum of consecutive naturals, for example, 2536 + ... + 2967.

It is an arithmetic number, because the mean of its divisors is an integer number (103200).

2^1188648 is an apocalyptic number.

1188648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1188648 is an abundant number, since it is smaller than the sum of its proper divisors (2113752).

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

1188648 is a wasteful number, since it uses less digits than its factorization.

1188648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5518 (or 5508 counting only the distinct ones).

The product of its digits is 12288, while the sum is 36.

The square root of 1188648 is about 1090.2513471672. The cubic root of 1188648 is about 105.9297030051.

The spelling of 1188648 in words is "one million, one hundred eighty-eight thousand, six hundred forty-eight".