1188049080 has 128 divisors (see below), whose sum is σ = 3854407680. Its totient is φ = 291809280.

The previous prime is 1188049073. The next prime is 1188049091. The reversal of 1188049080 is 809408811.

It is a happy number.

It is a super-2 number, since 2×1188049080² = 2822921232977692800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89685 + ... + 102075.

It is an arithmetic number, because the mean of its divisors is an integer number (30112560).

Almost surely, 2^1188049080 is an apocalyptic number.

1188049080 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 1188049080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1927203840).

1188049080 is an abundant number, since it is smaller than the sum of its proper divisors (2666358600).

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

1188049080 is a wasteful number, since it uses less digits than its factorization.

1188049080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12469 (or 12465 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 39.

The square root of 1188049080 is about 34468.0878494877. The cubic root of 1188049080 is about 1059.1190853714.

The spelling of 1188049080 in words is "one billion, one hundred eighty-eight million, forty-nine thousand, eighty".