4009042 has 16 divisors (see below), whose sum is σ = 6475032. Its totient is φ = 1854720.

The previous prime is 4009039. The next prime is 4009051. The reversal of 4009042 is 2409004.

4009042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3236401 + 772641 = 1799^2 + 879^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1108 + ... + 3040.

Almost surely, 2^4009042 is an apocalyptic number.

4009042 is a deficient number, since it is larger than the sum of its proper divisors (2465990).

4009042 is a wasteful number, since it uses less digits than its factorization.

4009042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2013.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 4009042 is about 2002.2592239768. The cubic root of 4009042 is about 158.8596258525.

The spelling of 4009042 in words is "four million, nine thousand, forty-two".