1188870888 has 32 divisors (see below), whose sum is σ = 3128608800. Its totient is φ = 375432768.

The previous prime is 1188870883. The next prime is 1188870941. The reversal of 1188870888 is 8880788811.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (1188870883) by changing a digit.

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, 1303131 + ... + 1304042.

It is an arithmetic number, because the mean of its divisors is an integer number (97769025).

Almost surely, 2^1188870888 is an apocalyptic number.

It is an amenable number.

1188870888 is an abundant number, since it is smaller than the sum of its proper divisors (1939737912).

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

1188870888 is a wasteful number, since it uses less digits than its factorization.

1188870888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2607201 (or 2607197 counting only the distinct ones).

The product of its (nonzero) digits is 1835008, while the sum is 57.

The square root of 1188870888 is about 34480.0070765654. The cubic root of 1188870888 is about 1059.3632368792.

The spelling of 1188870888 in words is "one billion, one hundred eighty-eight million, eight hundred seventy thousand, eight hundred eighty-eight".