1982442 has 48 divisors (see below), whose sum is σ = 5039712. Its totient is φ = 514080.

The previous prime is 1982437. The next prime is 1982443. The reversal of 1982442 is 2442891.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1982443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2928 + ... + 3540.

It is an arithmetic number, because the mean of its divisors is an integer number (104994).

2^1982442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1982442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2519856).

1982442 is an abundant number, since it is smaller than the sum of its proper divisors (3057270).

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

1982442 is a wasteful number, since it uses less digits than its factorization.

1982442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643 (or 636 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 1982442 is about 1407.9921874783. The cubic root of 1982442 is about 125.6223258756.

The spelling of 1982442 in words is "one million, nine hundred eighty-two thousand, four hundred forty-two".