1180443456 has 98 divisors (see below), whose sum is σ = 3512195922. Its totient is φ = 393465600.

The previous prime is 1180443431. The next prime is 1180443469. The reversal of 1180443456 is 6543440811.

It can be written as a sum of positive squares in only one way, i.e., 1063803456 + 116640000 = 32616^2 + 10800^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1180443456.

It is a congruent number.

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 13 ways as a sum of consecutive naturals, for example, 34006 + ... + 59306.

Almost surely, 2^1180443456 is an apocalyptic number.

1180443456 is a gapful number since it is divisible by the number (16) 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 1180443456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1756097961).

1180443456 is an abundant number, since it is smaller than the sum of its proper divisors (2331752466).

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

1180443456 is an frugal number, since it uses more digits than its factorization.

1180443456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25331 (or 25306 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 1180443456 is about 34357.5822199409. The cubic root of 1180443456 is about 1056.8541642797.

The spelling of 1180443456 in words is "one billion, one hundred eighty million, four hundred forty-three thousand, four hundred fifty-six".