1982312 has 24 divisors (see below), whose sum is σ = 3841110. Its totient is φ = 959040.

The previous prime is 1982293. The next prime is 1982371. The reversal of 1982312 is 2132891.

It can be written as a sum of positive squares in 3 ways, for example, as 1833316 + 148996 = 1354^2 + 386^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 10862 + ... + 11042.

2^1982312 is an apocalyptic number.

It is an amenable number.

1982312 is a deficient number, since it is larger than the sum of its proper divisors (1858798).

1982312 is a wasteful number, since it uses less digits than its factorization.

1982312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261 (or 220 counting only the distinct ones).

The product of its digits is 864, while the sum is 26.

The square root of 1982312 is about 1407.9460216926. The cubic root of 1982312 is about 125.6195798921.

The spelling of 1982312 in words is "one million, nine hundred eighty-two thousand, three hundred twelve".