1180994120 has 64 divisors (see below), whose sum is σ = 2767737600. Its totient is φ = 453116160.

The previous prime is 1180994117. The next prime is 1180994123. The reversal of 1180994120 is 214990811.

It is an interprime number because it is at equal distance from previous prime (1180994117) and next prime (1180994123).

It is a super-2 number, since 2×1180994120² = 2789494222949148800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1180994123) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 99461 + ... + 110699.

It is an arithmetic number, because the mean of its divisors is an integer number (43245900).

Almost surely, 2^1180994120 is an apocalyptic number.

1180994120 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 1180994120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1383868800).

1180994120 is an abundant number, since it is smaller than the sum of its proper divisors (1586743480).

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

1180994120 is a wasteful number, since it uses less digits than its factorization.

1180994120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11358 (or 11354 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 35.

The square root of 1180994120 is about 34365.5950043063. The cubic root of 1180994120 is about 1057.0184757136.

The spelling of 1180994120 in words is "one billion, one hundred eighty million, nine hundred ninety-four thousand, one hundred twenty".