42678620 has 24 divisors (see below), whose sum is σ = 89846064. Its totient is φ = 17029376.

The previous prime is 42678613. The next prime is 42678637. The reversal of 42678620 is 2687624.

42678620 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 7 ways as a sum of consecutive naturals, for example, 6452 + ... + 11268.

It is an arithmetic number, because the mean of its divisors is an integer number (3743586).

Almost surely, 2^42678620 is an apocalyptic number.

It is an amenable number.

42678620 is an abundant number, since it is smaller than the sum of its proper divisors (47167444).

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

42678620 is a wasteful number, since it uses less digits than its factorization.

42678620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5269 (or 5267 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 42678620 is about 6532.8875698270. The cubic root of 42678620 is about 349.4648147179.

The spelling of 42678620 in words is "forty-two million, six hundred seventy-eight thousand, six hundred twenty".