1180905530 has 32 divisors (see below), whose sum is σ = 2431351296. Its totient is φ = 404538624.

The previous prime is 1180905521. The next prime is 1180905533. The reversal of 1180905530 is 355090811.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1180905533) 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 15 ways as a sum of consecutive naturals, for example, 84287 + ... + 97293.

It is an arithmetic number, because the mean of its divisors is an integer number (75979728).

Almost surely, 2^1180905530 is an apocalyptic number.

1180905530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1180905530 is an abundant number, since it is smaller than the sum of its proper divisors (1250445766).

1180905530 is a wasteful number, since it uses less digits than its factorization.

1180905530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14318.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 1180905530 is about 34364.3060456631. The cubic root of 1180905530 is about 1056.9920449841.

The spelling of 1180905530 in words is "one billion, one hundred eighty million, nine hundred five thousand, five hundred thirty".