2006000042 has 4 divisors (see below), whose sum is σ = 3009000066. Its totient is φ = 1003000020.

The previous prime is 2006000041. The next prime is 2006000047. The reversal of 2006000042 is 2400006002.

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., 1810587601 + 195412441 = 42551^2 + 13979^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2005999990 and 2006000026.

It is not an unprimeable number, because it can be changed into a prime (2006000041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501500009 + ... + 501500012.

Almost surely, 2^2006000042 is an apocalyptic number.

2006000042 is a deficient number, since it is larger than the sum of its proper divisors (1003000024).

2006000042 is a wasteful number, since it uses less digits than its factorization.

2006000042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003000023.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2006000042 is about 44788.3918219889. The cubic root of 2006000042 is about 1261.1797219212.

Adding to 2006000042 its reverse (2400006002), we get a palindrome (4406006044).

The spelling of 2006000042 in words is "two billion, six million, forty-two", and thus it is an aban number, an eban number, and an uban number.