42872866 has 8 divisors (see below), whose sum is σ = 65522844. Its totient is φ = 21031920.

The previous prime is 42872833. The next prime is 42872887. The reversal of 42872866 is 66827824.

It can be written as a sum of positive squares in 2 ways, for example, as 42627841 + 245025 = 6529^2 + 495^2 .

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

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, 202125 + ... + 202336.

Almost surely, 2^42872866 is an apocalyptic number.

42872866 is a deficient number, since it is larger than the sum of its proper divisors (22649978).

42872866 is a wasteful number, since it uses less digits than its factorization.

42872866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404516.

The product of its digits is 258048, while the sum is 43.

The square root of 42872866 is about 6547.7374718295. The cubic root of 42872866 is about 349.9941931009.

The spelling of 42872866 in words is "forty-two million, eight hundred seventy-two thousand, eight hundred sixty-six".