42046171 has 4 divisors (see below), whose sum is σ = 43182592. Its totient is φ = 40909752.

The previous prime is 42046111. The next prime is 42046187. The reversal of 42046171 is 17164024.

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

It is a cyclic number.

It is not a de Polignac number, because 42046171 - 2⁹ = 42045659 is a prime.

It is a super-2 number, since 2×42046171² = 3535760991522482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42046111) 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, 568155 + ... + 568228.

It is an arithmetic number, because the mean of its divisors is an integer number (10795648).

Almost surely, 2^42046171 is an apocalyptic number.

42046171 is a deficient number, since it is larger than the sum of its proper divisors (1136421).

42046171 is a wasteful number, since it uses less digits than its factorization.

42046171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136420.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 42046171 is about 6484.3018899493. The cubic root of 42046171 is about 347.7299921491.

The spelling of 42046171 in words is "forty-two million, forty-six thousand, one hundred seventy-one".