42002187 has 8 divisors (see below), whose sum is σ = 56057040. Its totient is φ = 27974400.

The previous prime is 42002153. The next prime is 42002197. The reversal of 42002187 is 78120024.

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

It is not a de Polignac number, because 42002187 - 2¹⁴ = 41985803 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (42002197) 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, 2814 + ... + 9587.

It is an arithmetic number, because the mean of its divisors is an integer number (7007130).

Almost surely, 2^42002187 is an apocalyptic number.

42002187 is a deficient number, since it is larger than the sum of its proper divisors (14054853).

42002187 is a wasteful number, since it uses less digits than its factorization.

42002187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13533.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 42002187 is about 6480.9094269246. The cubic root of 42002187 is about 347.6086977730.

The spelling of 42002187 in words is "forty-two million, two thousand, one hundred eighty-seven".