42042671 has 16 divisors (see below), whose sum is σ = 47664288. Its totient is φ = 36748800.

The previous prime is 42042659. The next prime is 42042673. The reversal of 42042671 is 17624024.

It is not a de Polignac number, because 42042671 - 2¹⁰ = 42041647 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42042671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42042673) 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 15 ways as a sum of consecutive naturals, for example, 32285 + ... + 33561.

It is an arithmetic number, because the mean of its divisors is an integer number (2979018).

Almost surely, 2^42042671 is an apocalyptic number.

42042671 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

42042671 is a deficient number, since it is larger than the sum of its proper divisors (5621617).

42042671 is a wasteful number, since it uses less digits than its factorization.

42042671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 42042671 is about 6484.0320017717. The cubic root of 42042671 is about 347.7203433216.

Adding to 42042671 its reverse (17624024), we get a palindrome (59666695).

The spelling of 42042671 in words is "forty-two million, forty-two thousand, six hundred seventy-one".