42685806 has 8 divisors (see below), whose sum is σ = 85371624. Its totient is φ = 14228600.

The previous prime is 42685789. The next prime is 42685871. The reversal of 42685806 is 60858624.

It is a sphenic number, since it is the product of 3 distinct primes.

42685806 is an admirable number.

It is a super-3 number, since 3×42685806³ (a number of 24 digits) contains 333 as substring.

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, 3557145 + ... + 3557156.

It is an arithmetic number, because the mean of its divisors is an integer number (10671453).

Almost surely, 2^42685806 is an apocalyptic number.

42685806 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42685806 is a wasteful number, since it uses less digits than its factorization.

42685806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7114306.

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 42685806 is about 6533.4375331827. The cubic root of 42685806 is about 349.4844272954.

The spelling of 42685806 in words is "forty-two million, six hundred eighty-five thousand, eight hundred six".