42866566 has 8 divisors (see below), whose sum is σ = 65868264. Its totient is φ = 20910480.

The previous prime is 42866563. The next prime is 42866587. The reversal of 42866566 is 66566824.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42866563) 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, 261300 + ... + 261463.

It is an arithmetic number, because the mean of its divisors is an integer number (8233533).

Almost surely, 2^42866566 is an apocalyptic number.

42866566 is a deficient number, since it is larger than the sum of its proper divisors (23001698).

42866566 is a wasteful number, since it uses less digits than its factorization.

42866566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522806.

The product of its digits is 414720, while the sum is 43.

The square root of 42866566 is about 6547.2563719470. The cubic root of 42866566 is about 349.9770488352.

The spelling of 42866566 in words is "forty-two million, eight hundred sixty-six thousand, five hundred sixty-six".