1173684380 has 24 divisors (see below), whose sum is σ = 2688804720. Its totient is φ = 426794240.

The previous prime is 1173684367. The next prime is 1173684389. The reversal of 1173684380 is 834863711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1173684389) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2667245 + ... + 2667684.

It is an arithmetic number, because the mean of its divisors is an integer number (112033530).

Almost surely, 2^1173684380 is an apocalyptic number.

1173684380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1173684380 is an abundant number, since it is smaller than the sum of its proper divisors (1515120340).

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

1173684380 is a wasteful number, since it uses less digits than its factorization.

1173684380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5334949 (or 5334947 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 1173684380 is about 34259.0773372547. The cubic root of 1173684380 is about 1054.8331624500.

The spelling of 1173684380 in words is "one billion, one hundred seventy-three million, six hundred eighty-four thousand, three hundred eighty".