1171382980 has 12 divisors (see below), whose sum is σ = 2459904300. Its totient is φ = 468553184.

The previous prime is 1171382959. The next prime is 1171382983. The reversal of 1171382980 is 892831711.

It can be written as a sum of positive squares in 2 ways, for example, as 306670144 + 864712836 = 17512^2 + 29406^2 .

It is not an unprimeable number, because it can be changed into a prime (1171382983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29284555 + ... + 29284594.

It is an arithmetic number, because the mean of its divisors is an integer number (204992025).

Almost surely, 2^1171382980 is an apocalyptic number.

1171382980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1171382980 is an abundant number, since it is smaller than the sum of its proper divisors (1288521320).

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

1171382980 is a wasteful number, since it uses less digits than its factorization.

1171382980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58569158 (or 58569156 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 40.

The square root of 1171382980 is about 34225.4726775248. The cubic root of 1171382980 is about 1054.1432604870.

The spelling of 1171382980 in words is "one billion, one hundred seventy-one million, three hundred eighty-two thousand, nine hundred eighty".