1171350880 has 144 divisors (see below), whose sum is σ = 3281024880. Its totient is φ = 393888768.

The previous prime is 1171350871. The next prime is 1171350899. The reversal of 1171350880 is 880531711.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 414111 + ... + 416929.

It is an arithmetic number, because the mean of its divisors is an integer number (22784895).

Almost surely, 2^1171350880 is an apocalyptic number.

1171350880 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 1171350880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1640512440).

1171350880 is an abundant number, since it is smaller than the sum of its proper divisors (2109674000).

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

1171350880 is a wasteful number, since it uses less digits than its factorization.

1171350880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2901 (or 2886 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 34.

The square root of 1171350880 is about 34225.0037253468. The cubic root of 1171350880 is about 1054.1336313255.

The spelling of 1171350880 in words is "one billion, one hundred seventy-one million, three hundred fifty thousand, eight hundred eighty".