1982118 has 16 divisors (see below), whose sum is σ = 4173120. Its totient is φ = 625896.

The previous prime is 1982111. The next prime is 1982129. The reversal of 1982118 is 8112891.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8580 + ... + 8807.

It is an arithmetic number, because the mean of its divisors is an integer number (260820).

2^1982118 is an apocalyptic number.

1982118 is an abundant number, since it is smaller than the sum of its proper divisors (2191002).

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

1982118 is a wasteful number, since it uses less digits than its factorization.

1982118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17411.

The product of its digits is 1152, while the sum is 30.

The square root of 1982118 is about 1407.8771253202. The cubic root of 1982118 is about 125.6154818164.

The spelling of 1982118 in words is "one million, nine hundred eighty-two thousand, one hundred eighteen".