2009042 has 8 divisors (see below), whose sum is σ = 3444096. Its totient is φ = 861012.

The previous prime is 2009039. The next prime is 2009069. The reversal of 2009042 is 2409002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2009042.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71738 + ... + 71765.

It is an arithmetic number, because the mean of its divisors is an integer number (430512).

2^2009042 is an apocalyptic number.

2009042 is a deficient number, since it is larger than the sum of its proper divisors (1435054).

2009042 is a wasteful number, since it uses less digits than its factorization.

2009042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143512.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2009042 is about 1417.4067870587. The cubic root of 2009042 is about 126.1816896740.

The spelling of 2009042 in words is "two million, nine thousand, forty-two".