1185321480 has 256 divisors, whose sum is σ = 4211343360. Its totient is φ = 261273600.

The previous prime is 1185321463. The next prime is 1185321539. The reversal of 1185321480 is 841235811.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4373745 + ... + 4374015.

It is an arithmetic number, because the mean of its divisors is an integer number (16450560).

Almost surely, 2^1185321480 is an apocalyptic number.

1185321480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1185321480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2105671680).

1185321480 is an abundant number, since it is smaller than the sum of its proper divisors (3026021880).

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

1185321480 is a wasteful number, since it uses less digits than its factorization.

1185321480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 1185321480 is about 34428.4980793528. The cubic root of 1185321480 is about 1058.3079328987.

It can be divided in two parts, 11853 and 21480, that added together give a palindrome (33333).

The spelling of 1185321480 in words is "one billion, one hundred eighty-five million, three hundred twenty-one thousand, four hundred eighty".