42170174 has 4 divisors (see below), whose sum is σ = 63255264. Its totient is φ = 21085086.

The previous prime is 42170173. The next prime is 42170189. The reversal of 42170174 is 47107124.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42170171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10542542 + ... + 10542545.

It is an arithmetic number, because the mean of its divisors is an integer number (15813816).

Almost surely, 2^42170174 is an apocalyptic number.

42170174 is a deficient number, since it is larger than the sum of its proper divisors (21085090).

42170174 is a wasteful number, since it uses less digits than its factorization.

42170174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21085089.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 42170174 is about 6493.8566353131. The cubic root of 42170174 is about 348.0714995995.

Adding to 42170174 its reverse (47107124), we get a palindrome (89277298).

The spelling of 42170174 in words is "forty-two million, one hundred seventy thousand, one hundred seventy-four".