42003039 has 16 divisors (see below), whose sum is σ = 63860832. Its totient is φ = 24327168.

The previous prime is 42003023. The next prime is 42003061. The reversal of 42003039 is 93030024.

42003039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42003039 - 2⁴ = 42003023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42003139) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 31014 + ... + 32339.

It is an arithmetic number, because the mean of its divisors is an integer number (3991302).

Almost surely, 2^42003039 is an apocalyptic number.

42003039 is a deficient number, since it is larger than the sum of its proper divisors (21857793).

42003039 is a wasteful number, since it uses less digits than its factorization.

42003039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63386.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 42003039 is about 6480.9751581070. The cubic root of 42003039 is about 347.6110481317.

The spelling of 42003039 in words is "forty-two million, three thousand, thirty-nine".