1966180 has 24 divisors (see below), whose sum is σ = 4242168. Its totient is φ = 764928.

The previous prime is 1966163. The next prime is 1966189. The reversal of 1966180 is 816691.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 675684 + 1290496 = 822^2 + 1136^2 .

It is not an unprimeable number, because it can be changed into a prime (1966189) 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 7 ways as a sum of consecutive naturals, for example, 589 + ... + 2068.

It is an arithmetic number, because the mean of its divisors is an integer number (176757).

2^1966180 is an apocalyptic number.

1966180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1966180 is an abundant number, since it is smaller than the sum of its proper divisors (2275988).

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

1966180 is a wasteful number, since it uses less digits than its factorization.

1966180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2703 (or 2701 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 1966180 is about 1402.2054057805. The cubic root of 1966180 is about 125.2778884330.

The spelling of 1966180 in words is "one million, nine hundred sixty-six thousand, one hundred eighty".