42084147 has 8 divisors (see below), whose sum is σ = 64128256. Its totient is φ = 24048072.

The previous prime is 42084139. The next prime is 42084151. The reversal of 42084147 is 74148024.

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

It is not a de Polignac number, because 42084147 - 2³ = 42084139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42084127) 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, 1001983 + ... + 1002024.

It is an arithmetic number, because the mean of its divisors is an integer number (8016032).

Almost surely, 2^42084147 is an apocalyptic number.

42084147 is a deficient number, since it is larger than the sum of its proper divisors (22044109).

42084147 is a wasteful number, since it uses less digits than its factorization.

42084147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004017.

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 42084147 is about 6487.2295319343. The cubic root of 42084147 is about 347.8346502758.

The spelling of 42084147 in words is "forty-two million, eighty-four thousand, one hundred forty-seven".