1996018042 has 16 divisors (see below), whose sum is σ = 3171004200. Its totient is φ = 939048448.

The previous prime is 1996018007. The next prime is 1996018067. The reversal of 1996018042 is 2408106991.

It can be written as a sum of positive squares in 4 ways, for example, as 1676001721 + 320016321 = 40939^2 + 17889^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1996017986 and 1996018004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193848 + ... + 203884.

Almost surely, 2^1996018042 is an apocalyptic number.

1996018042 is a deficient number, since it is larger than the sum of its proper divisors (1174986158).

1996018042 is a wasteful number, since it uses less digits than its factorization.

1996018042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15905.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 1996018042 is about 44676.8177246321. The cubic root of 1996018042 is about 1259.0843355714.

The spelling of 1996018042 in words is "one billion, nine hundred ninety-six million, eighteen thousand, forty-two".