42871646 has 8 divisors (see below), whose sum is σ = 65213424. Its totient is φ = 21133840.

The previous prime is 42871601. The next prime is 42871663. The reversal of 42871646 is 64617824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150815 + ... + 151098.

It is an arithmetic number, because the mean of its divisors is an integer number (8151678).

Almost surely, 2^42871646 is an apocalyptic number.

42871646 is a deficient number, since it is larger than the sum of its proper divisors (22341778).

42871646 is a wasteful number, since it uses less digits than its factorization.

42871646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301986.

The product of its digits is 64512, while the sum is 38.

The square root of 42871646 is about 6547.6443092153. The cubic root of 42871646 is about 349.9908732314.

The spelling of 42871646 in words is "forty-two million, eight hundred seventy-one thousand, six hundred forty-six".