1996842 has 32 divisors (see below), whose sum is σ = 4177152. Its totient is φ = 635904.

The previous prime is 1996829. The next prime is 1996849. The reversal of 1996842 is 2486991.

It is a self number, because there is not a number n which added to its sum of digits gives 1996842.

It is not an unprimeable number, because it can be changed into a prime (1996849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20538 + ... + 20634.

It is an arithmetic number, because the mean of its divisors is an integer number (130536).

2^1996842 is an apocalyptic number.

1996842 is an abundant number, since it is smaller than the sum of its proper divisors (2180310).

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

1996842 is a wasteful number, since it uses less digits than its factorization.

1996842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222.

The product of its digits is 31104, while the sum is 39.

The square root of 1996842 is about 1413.0965996704. The cubic root of 1996842 is about 125.9257562111.

The spelling of 1996842 in words is "one million, nine hundred ninety-six thousand, eight hundred forty-two".