1180440811 has 8 divisors (see below), whose sum is σ = 1290222144. Its totient is φ = 1071070920.

The previous prime is 1180440803. The next prime is 1180440841.

1180440811 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1180440811 - 2³ = 1180440803 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1180440811.

It is not an unprimeable number, because it can be changed into a prime (1180440841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96841 + ... + 108346.

It is an arithmetic number, because the mean of its divisors is an integer number (161277768).

Almost surely, 2^1180440811 is an apocalyptic number.

1180440811 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1180440811 is a deficient number, since it is larger than the sum of its proper divisors (109781333).

1180440811 is a wasteful number, since it uses less digits than its factorization.

1180440811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205721.

The product of its (nonzero) digits is 1024, while the sum is 28.

The square root of 1180440811 is about 34357.5437276881. The cubic root of 1180440811 is about 1056.8533749206.

The spelling of 1180440811 in words is "one billion, one hundred eighty million, four hundred forty thousand, eight hundred eleven".