42130686 has 24 divisors (see below), whose sum is σ = 91243800. Its totient is φ = 12962976.

The previous prime is 42130631. The next prime is 42130691. The reversal of 42130686 is 68603124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19761 + ... + 21788.

It is an arithmetic number, because the mean of its divisors is an integer number (3801825).

Almost surely, 2^42130686 is an apocalyptic number.

42130686 is an abundant number, since it is smaller than the sum of its proper divisors (49113114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42130686 is a wasteful number, since it uses less digits than its factorization.

42130686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41580 (or 41567 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 42130686 is about 6490.8155111665. The cubic root of 42130686 is about 347.9628213684.

The spelling of 42130686 in words is "forty-two million, one hundred thirty thousand, six hundred eighty-six".