1189030080 has 448 divisors, whose sum is σ = 4623206400. Its totient is φ = 258306048.

The previous prime is 1189030067. The next prime is 1189030091. The reversal of 1189030080 is 800309811.

It is a tau number, because it is divible by the number of its divisors (448).

It is a super-2 number, since 2×1189030080² = 2827585062289612800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7573362 + ... + 7573518.

Almost surely, 2^1189030080 is an apocalyptic number.

1189030080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1189030080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2311603200).

1189030080 is an abundant number, since it is smaller than the sum of its proper divisors (3434176320).

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

1189030080 is a wasteful number, since it uses less digits than its factorization.

1189030080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 1189030080 is about 34482.3154674972. The cubic root of 1189030080 is about 1059.4105183312.

Adding to 1189030080 its reverse (800309811), we get a palindrome (1989339891).

The spelling of 1189030080 in words is "one billion, one hundred eighty-nine million, thirty thousand, eighty".