1982122 has 8 divisors (see below), whose sum is σ = 2982276. Its totient is φ = 988032.

The previous prime is 1982111. The next prime is 1982129. The reversal of 1982122 is 2212891.

It can be written as a sum of positive squares in 2 ways, for example, as 1962801 + 19321 = 1401^2 + 139^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1982129) 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 3 ways as a sum of consecutive naturals, for example, 583 + ... + 2074.

2^1982122 is an apocalyptic number.

1982122 is a deficient number, since it is larger than the sum of its proper divisors (1000154).

1982122 is a wasteful number, since it uses less digits than its factorization.

1982122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3032.

The product of its digits is 576, while the sum is 25.

The square root of 1982122 is about 1407.8785458980. The cubic root of 1982122 is about 125.6155663155.

The spelling of 1982122 in words is "one million, nine hundred eighty-two thousand, one hundred twenty-two".