1188988 has 6 divisors (see below), whose sum is σ = 2080736. Its totient is φ = 594492.

The previous prime is 1188977. The next prime is 1188991. The reversal of 1188988 is 8898811.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 148620 + ... + 148627.

2^1188988 is an apocalyptic number.

It is an amenable number.

1188988 is a deficient number, since it is larger than the sum of its proper divisors (891748).

1188988 is a wasteful number, since it uses less digits than its factorization.

1188988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297251 (or 297249 counting only the distinct ones).

The product of its digits is 36864, while the sum is 43.

The square root of 1188988 is about 1090.4072633654. The cubic root of 1188988 is about 105.9398020604.

The spelling of 1188988 in words is "one million, one hundred eighty-eight thousand, nine hundred eighty-eight".