1189687488 has 168 divisors, whose sum is σ = 3547110000. Its totient is φ = 351436800.

The previous prime is 1189687463. The next prime is 1189687511. The reversal of 1189687488 is 8847869811.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 951888 + ... + 953136.

It is an arithmetic number, because the mean of its divisors is an integer number (21113750).

Almost surely, 2^1189687488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1189687488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1773555000).

1189687488 is an abundant number, since it is smaller than the sum of its proper divisors (2357422512).

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

1189687488 is a wasteful number, since it uses less digits than its factorization.

1189687488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327 (or 1306 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 60.

The square root of 1189687488 is about 34491.8466887466. The cubic root of 1189687488 is about 1059.6057297180.

The spelling of 1189687488 in words is "one billion, one hundred eighty-nine million, six hundred eighty-seven thousand, four hundred eighty-eight".