42828686 has 8 divisors (see below), whose sum is σ = 64328880. Its totient is φ = 21385728.

The previous prime is 42828683. The next prime is 42828697. The reversal of 42828686 is 68682824.

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 (42828683) 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, 12386 + ... + 15461.

It is an arithmetic number, because the mean of its divisors is an integer number (8041110).

Almost surely, 2^42828686 is an apocalyptic number.

42828686 is a deficient number, since it is larger than the sum of its proper divisors (21500194).

42828686 is a wasteful number, since it uses less digits than its factorization.

42828686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28618.

The product of its digits is 294912, while the sum is 44.

The square root of 42828686 is about 6544.3629178095. The cubic root of 42828686 is about 349.8739301053.

The spelling of 42828686 in words is "forty-two million, eight hundred twenty-eight thousand, six hundred eighty-six".