1180900 has 54 divisors (see below), whose sum is σ = 2993298. Its totient is φ = 403200.

The previous prime is 1180897. The next prime is 1180901. The reversal of 1180900 is 90811.

It can be written as a sum of positive squares in 3 ways, for example, as 164836 + 1016064 = 406^2 + 1008^2 .

It is not an unprimeable number, because it can be changed into a prime (1180901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4780 + ... + 5020.

2^1180900 is an apocalyptic number.

1180900 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 1180900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1496649).

1180900 is an abundant number, since it is smaller than the sum of its proper divisors (1812398).

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

1180900 is a wasteful number, since it uses less digits than its factorization.

1180900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 1180900 is about 1086.6922287382. The cubic root of 1180900 is about 105.6990395071.

It can be divided in two parts, 1180 and 900, that added together give a triangular number (2080 = T₆₄).

The spelling of 1180900 in words is "one million, one hundred eighty thousand, nine hundred".