42172174 has 8 divisors (see below), whose sum is σ = 69009048. Its totient is φ = 19169160.

The previous prime is 42172171. The next prime is 42172187. The reversal of 42172174 is 47127124.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42172171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 958437 + ... + 958480.

It is an arithmetic number, because the mean of its divisors is an integer number (8626131).

Almost surely, 2^42172174 is an apocalyptic number.

42172174 is a deficient number, since it is larger than the sum of its proper divisors (26836874).

42172174 is a wasteful number, since it uses less digits than its factorization.

42172174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916930.

The product of its digits is 3136, while the sum is 28.

The square root of 42172174 is about 6494.0106251838. The cubic root of 42172174 is about 348.0770021616.

Adding to 42172174 its reverse (47127124), we get a palindrome (89299298).

The spelling of 42172174 in words is "forty-two million, one hundred seventy-two thousand, one hundred seventy-four".