1982512 has 40 divisors (see below), whose sum is σ = 4539392. Its totient is φ = 820800.

The previous prime is 1982509. The next prime is 1982521. The reversal of 1982512 is 2152891.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

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, 3187 + ... + 3757.

2^1982512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1982512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2269696).

1982512 is an abundant number, since it is smaller than the sum of its proper divisors (2556880).

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

1982512 is a wasteful number, since it uses less digits than its factorization.

1982512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617 (or 611 counting only the distinct ones).

The product of its digits is 1440, while the sum is 28.

The square root of 1982512 is about 1408.0170453514. The cubic root of 1982512 is about 125.6238044324.

The spelling of 1982512 in words is "one million, nine hundred eighty-two thousand, five hundred twelve".