1188006806 has 16 divisors (see below), whose sum is σ = 2143772160. Its totient is φ = 482348520.

The previous prime is 1188006797. The next prime is 1188006817. The reversal of 1188006806 is 6086008811.

It is a super-2 number, since 2×1188006806² = 2822720342204643272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1188006806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2232830 + ... + 2233361.

It is an arithmetic number, because the mean of its divisors is an integer number (133985760).

Almost surely, 2^1188006806 is an apocalyptic number.

1188006806 is a deficient number, since it is larger than the sum of its proper divisors (955765354).

1188006806 is a wasteful number, since it uses less digits than its factorization.

1188006806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4466219.

The product of its (nonzero) digits is 18432, while the sum is 38.

The square root of 1188006806 is about 34467.4746101306. The cubic root of 1188006806 is about 1059.1065231151.

The spelling of 1188006806 in words is "one billion, one hundred eighty-eight million, six thousand, eight hundred six".