42516686 has 8 divisors (see below), whose sum is σ = 65832384. Its totient is φ = 20572560.

The previous prime is 42516671. The next prime is 42516701. The reversal of 42516686 is 68661524.

It is an interprime number because it is at equal distance from previous prime (42516671) and next prime (42516701).

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, 342815 + ... + 342938.

It is an arithmetic number, because the mean of its divisors is an integer number (8229048).

Almost surely, 2^42516686 is an apocalyptic number.

42516686 is a deficient number, since it is larger than the sum of its proper divisors (23315698).

42516686 is a wasteful number, since it uses less digits than its factorization.

42516686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685786.

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

The square root of 42516686 is about 6520.4820373957. The cubic root of 42516686 is about 349.0222671430.

The spelling of 42516686 in words is "forty-two million, five hundred sixteen thousand, six hundred eighty-six".