2016842 has 4 divisors (see below), whose sum is σ = 3025266. Its totient is φ = 1008420.

The previous prime is 2016841. The next prime is 2016851. The reversal of 2016842 is 2486102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1990921 + 25921 = 1411^2 + 161^2 .

It is not an unprimeable number, because it can be changed into a prime (2016841) 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 as a sum of consecutive naturals, namely, 504209 + ... + 504212.

2^2016842 is an apocalyptic number.

2016842 is a deficient number, since it is larger than the sum of its proper divisors (1008424).

2016842 is a wasteful number, since it uses less digits than its factorization.

2016842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008423.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 2016842 is about 1420.1556252749. The cubic root of 2016842 is about 126.3447767234.

The spelling of 2016842 in words is "two million, sixteen thousand, eight hundred forty-two".