42856680 has 32 divisors (see below), whose sum is σ = 128570400. Its totient is φ = 11428416.

The previous prime is 42856679. The next prime is 42856691. The reversal of 42856680 is 8665824.

42856680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 178450 + ... + 178689.

It is an arithmetic number, because the mean of its divisors is an integer number (4017825).

Almost surely, 2^42856680 is an apocalyptic number.

42856680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42856680 is an abundant number, since it is smaller than the sum of its proper divisors (85713720).

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

42856680 is a wasteful number, since it uses less digits than its factorization.

42856680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357153 (or 357149 counting only the distinct ones).

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

The square root of 42856680 is about 6546.5013556861. The cubic root of 42856680 is about 349.9501425580.

The spelling of 42856680 in words is "forty-two million, eight hundred fifty-six thousand, six hundred eighty".