42809876 has 24 divisors (see below), whose sum is σ = 80450496. Its totient is φ = 19859840.

The previous prime is 42809857. The next prime is 42809881. The reversal of 42809876 is 67890824.

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395 + ... + 9261.

It is an arithmetic number, because the mean of its divisors is an integer number (3352104).

Almost surely, 2^42809876 is an apocalyptic number.

It is an amenable number.

42809876 is a deficient number, since it is larger than the sum of its proper divisors (37640620).

42809876 is a wasteful number, since it uses less digits than its factorization.

42809876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8959 (or 8957 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 42809876 is about 6542.9256453058. The cubic root of 42809876 is about 349.8227020389.

The spelling of 42809876 in words is "forty-two million, eight hundred nine thousand, eight hundred seventy-six".