42851908 has 72 divisors (see below), whose sum is σ = 88482240. Its totient is φ = 18110400.

The previous prime is 42851899. The next prime is 42851911. The reversal of 42851908 is 80915824.

42851908 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 23 ways as a sum of consecutive naturals, for example, 603513 + ... + 603583.

It is an arithmetic number, because the mean of its divisors is an integer number (1228920).

Almost surely, 2^42851908 is an apocalyptic number.

It is an amenable number.

42851908 is an abundant number, since it is smaller than the sum of its proper divisors (45630332).

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

42851908 is a wasteful number, since it uses less digits than its factorization.

42851908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 42851908 is about 6546.1368760514. The cubic root of 42851908 is about 349.9371533417.

The spelling of 42851908 in words is "forty-two million, eight hundred fifty-one thousand, nine hundred eight".