42359871 has 4 divisors (see below), whose sum is σ = 56479832. Its totient is φ = 28239912.

The previous prime is 42359827. The next prime is 42359881. The reversal of 42359871 is 17895324.

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

It is not a de Polignac number, because 42359871 - 2⁷ = 42359743 is a prime.

It is a super-2 number, since 2×42359871² = 3588717342273282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42359881) 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, 7059976 + ... + 7059981.

It is an arithmetic number, because the mean of its divisors is an integer number (14119958).

Almost surely, 2^42359871 is an apocalyptic number.

42359871 is a deficient number, since it is larger than the sum of its proper divisors (14119961).

42359871 is a wasteful number, since it uses less digits than its factorization.

42359871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14119960.

The product of its digits is 60480, while the sum is 39.

The square root of 42359871 is about 6508.4461279172. The cubic root of 42359871 is about 348.5926369613.

The spelling of 42359871 in words is "forty-two million, three hundred fifty-nine thousand, eight hundred seventy-one".