42003007 has 4 divisors (see below), whose sum is σ = 42896736. Its totient is φ = 41109280.

The previous prime is 42002999. The next prime is 42003023. The reversal of 42003007 is 70030024.

42003007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42003007 - 2³ = 42002999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42003067) 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 3 ways as a sum of consecutive naturals, for example, 446794 + ... + 446887.

It is an arithmetic number, because the mean of its divisors is an integer number (10724184).

Almost surely, 2^42003007 is an apocalyptic number.

42003007 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

42003007 is a deficient number, since it is larger than the sum of its proper divisors (893729).

42003007 is an equidigital number, since it uses as much as digits as its factorization.

42003007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893728.

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 42003007 is about 6480.9726893422. The cubic root of 42003007 is about 347.6109598559.

The spelling of 42003007 in words is "forty-two million, three thousand, seven".