1188279888 has 40 divisors (see below), whose sum is σ = 3141117408. Its totient is φ = 386881152.

The previous prime is 1188279887. The next prime is 1188279913. The reversal of 1188279888 is 8889728811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1188279881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285795 + ... + 289922.

Almost surely, 2^1188279888 is an apocalyptic number.

It is an amenable number.

1188279888 is an abundant number, since it is smaller than the sum of its proper divisors (1952837520).

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

1188279888 is a wasteful number, since it uses less digits than its factorization.

1188279888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575771 (or 575765 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 60.

The square root of 1188279888 is about 34471.4358273629. The cubic root of 1188279888 is about 1059.1876676473.

The spelling of 1188279888 in words is "one billion, one hundred eighty-eight million, two hundred seventy-nine thousand, eight hundred eighty-eight".