42166347 has 8 divisors (see below), whose sum is σ = 57741456. Its totient is φ = 27351072.

The previous prime is 42166321. The next prime is 42166351. The reversal of 42166347 is 74366124.

It is a happy number.

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

It is not a de Polignac number, because 42166347 - 2⁶ = 42166283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42166367) 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, 189828 + ... + 190049.

It is an arithmetic number, because the mean of its divisors is an integer number (7217682).

Almost surely, 2^42166347 is an apocalyptic number.

42166347 is a deficient number, since it is larger than the sum of its proper divisors (15575109).

42166347 is a wasteful number, since it uses less digits than its factorization.

42166347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379917.

The product of its digits is 24192, while the sum is 33.

The square root of 42166347 is about 6493.5619655163. The cubic root of 42166347 is about 348.0609699621.

The spelling of 42166347 in words is "forty-two million, one hundred sixty-six thousand, three hundred forty-seven".