42530170 has 16 divisors (see below), whose sum is σ = 80583840. Its totient is φ = 16116624.

The previous prime is 42530119. The next prime is 42530179. The reversal of 42530170 is 7103524.

It is not an unprimeable number, because it can be changed into a prime (42530179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111732 + ... + 112111.

It is an arithmetic number, because the mean of its divisors is an integer number (5036490).

Almost surely, 2^42530170 is an apocalyptic number.

42530170 is a deficient number, since it is larger than the sum of its proper divisors (38053670).

42530170 is a wasteful number, since it uses less digits than its factorization.

42530170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223869.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 42530170 is about 6521.5159280646. The cubic root of 42530170 is about 349.0591602569.

Adding to 42530170 its reverse (7103524), we get a palindrome (49633694).

The spelling of 42530170 in words is "forty-two million, five hundred thirty thousand, one hundred seventy".