42806256 has 20 divisors (see below), whose sum is σ = 110582952. Its totient is φ = 14268736.

The previous prime is 42806219. The next prime is 42806261. The reversal of 42806256 is 65260824.

42806256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3 ways as a sum of consecutive naturals, for example, 445851 + ... + 445946.

Almost surely, 2^42806256 is an apocalyptic number.

It is an amenable number.

42806256 is an abundant number, since it is smaller than the sum of its proper divisors (67776696).

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

42806256 is a wasteful number, since it uses less digits than its factorization.

42806256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891808 (or 891802 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 42806256 is about 6542.6490047992. The cubic root of 42806256 is about 349.8128414335.

The spelling of 42806256 in words is "forty-two million, eight hundred six thousand, two hundred fifty-six".