1180400705 has 8 divisors (see below), whose sum is σ = 1545251904. Its totient is φ = 858473200.

The previous prime is 1180400693. The next prime is 1180400719. The reversal of 1180400705 is 5070040811.

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

It is not a de Polignac number, because 1180400705 - 2⁸ = 1180400449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10730861 + ... + 10730970.

It is an arithmetic number, because the mean of its divisors is an integer number (193156488).

Almost surely, 2^1180400705 is an apocalyptic number.

It is an amenable number.

1180400705 is a deficient number, since it is larger than the sum of its proper divisors (364851199).

1180400705 is a wasteful number, since it uses less digits than its factorization.

1180400705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21461847.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 1180400705 is about 34356.9600663388. The cubic root of 1180400705 is about 1056.8414057644.

The spelling of 1180400705 in words is "one billion, one hundred eighty million, four hundred thousand, seven hundred five".