42866615 has 16 divisors (see below), whose sum is σ = 56535840. Its totient is φ = 30942720.

The previous prime is 42866599. The next prime is 42866617. The reversal of 42866615 is 51666824.

It is not a de Polignac number, because 42866615 - 2⁴ = 42866599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42866617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4691 + ... + 10379.

It is an arithmetic number, because the mean of its divisors is an integer number (3533490).

Almost surely, 2^42866615 is an apocalyptic number.

42866615 is a deficient number, since it is larger than the sum of its proper divisors (13669225).

42866615 is a wasteful number, since it uses less digits than its factorization.

42866615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5842.

The product of its digits is 69120, while the sum is 38.

The square root of 42866615 is about 6547.2601139713. The cubic root of 42866615 is about 349.9771821859.

It can be divided in two parts, 4286 and 6615, that added together give a palindrome (10901).

The spelling of 42866615 in words is "forty-two million, eight hundred sixty-six thousand, six hundred fifteen".