1188045770 has 16 divisors (see below), whose sum is σ = 2139027048. Its totient is φ = 475097280.

The previous prime is 1188045739. The next prime is 1188045811. The reversal of 1188045770 is 775408811.

It can be written as a sum of positive squares in 4 ways, for example, as 614395369 + 573650401 = 24787^2 + 23951^2 .

It is a super-3 number, since 3×1188045770³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33560 + ... + 59180.

Almost surely, 2^1188045770 is an apocalyptic number.

1188045770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1188045770 is a deficient number, since it is larger than the sum of its proper divisors (950981278).

1188045770 is a wasteful number, since it uses less digits than its factorization.

1188045770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30265.

The product of its (nonzero) digits is 62720, while the sum is 41.

The square root of 1188045770 is about 34468.0398340260. The cubic root of 1188045770 is about 1059.1181017736.

The spelling of 1188045770 in words is "one billion, one hundred eighty-eight million, forty-five thousand, seven hundred seventy".