42667806 has 32 divisors (see below), whose sum is σ = 93738240. Its totient is φ = 12887424.

The previous prime is 42667799. The next prime is 42667817. The reversal of 42667806 is 60876624.

42667806 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5515 + ... + 10758.

It is an arithmetic number, because the mean of its divisors is an integer number (2929320).

Almost surely, 2^42667806 is an apocalyptic number.

42667806 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

42667806 is an abundant number, since it is smaller than the sum of its proper divisors (51070434).

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

42667806 is a wasteful number, since it uses less digits than its factorization.

42667806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16320.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 42667806 is about 6532.0598588807. The cubic root of 42667806 is about 349.4352961773.

The spelling of 42667806 in words is "forty-two million, six hundred sixty-seven thousand, eight hundred six".