42003858 has 16 divisors (see below), whose sum is σ = 90470016. Its totient is φ = 12924240.

The previous prime is 42003847. The next prime is 42003859. The reversal of 42003858 is 85830024.

It is not an unprimeable number, because it can be changed into a prime (42003859) by changing a digit.

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, 269178 + ... + 269333.

It is an arithmetic number, because the mean of its divisors is an integer number (5654376).

Almost surely, 2^42003858 is an apocalyptic number.

42003858 is an abundant number, since it is smaller than the sum of its proper divisors (48466158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42003858 is a wasteful number, since it uses less digits than its factorization.

42003858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538529.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 42003858 is about 6481.0383427349. The cubic root of 42003858 is about 347.6133074253.

The spelling of 42003858 in words is "forty-two million, three thousand, eight hundred fifty-eight".