42289671 has 4 divisors (see below), whose sum is σ = 56386232. Its totient is φ = 28193112.

The previous prime is 42289669. The next prime is 42289679. The reversal of 42289671 is 17698224.

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

It is not a de Polignac number, because 42289671 - 2¹ = 42289669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42289679) 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, 7048276 + ... + 7048281.

It is an arithmetic number, because the mean of its divisors is an integer number (14096558).

Almost surely, 2^42289671 is an apocalyptic number.

42289671 is a deficient number, since it is larger than the sum of its proper divisors (14096561).

42289671 is a wasteful number, since it uses less digits than its factorization.

42289671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14096560.

The product of its digits is 48384, while the sum is 39.

The square root of 42289671 is about 6503.0508993856. The cubic root of 42289671 is about 348.3999645638.

The spelling of 42289671 in words is "forty-two million, two hundred eighty-nine thousand, six hundred seventy-one".