42038187 has 8 divisors (see below), whose sum is σ = 56454720. Its totient is φ = 27823560.

The previous prime is 42038173. The next prime is 42038207. The reversal of 42038187 is 78183024.

42038187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 42038187 - 2⁶ = 42038123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42038107) 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 7 ways as a sum of consecutive naturals, for example, 49989 + ... + 50822.

It is an arithmetic number, because the mean of its divisors is an integer number (7056840).

Almost surely, 2^42038187 is an apocalyptic number.

42038187 is a deficient number, since it is larger than the sum of its proper divisors (14416533).

42038187 is a wasteful number, since it uses less digits than its factorization.

42038187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100953.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 42038187 is about 6483.6862200449. The cubic root of 42038187 is about 347.7079810128.

The spelling of 42038187 in words is "forty-two million, thirty-eight thousand, one hundred eighty-seven".