42789688 has 8 divisors (see below), whose sum is σ = 80230680. Its totient is φ = 21394840.

The previous prime is 42789661. The next prime is 42789701. The reversal of 42789688 is 88698724.

42789688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 2674348 + ... + 2674363.

It is an arithmetic number, because the mean of its divisors is an integer number (10028835).

Almost surely, 2^42789688 is an apocalyptic number.

It is an amenable number.

42789688 is a deficient number, since it is larger than the sum of its proper divisors (37440992).

42789688 is a wasteful number, since it uses less digits than its factorization.

42789688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5348717 (or 5348713 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 52.

The square root of 42789688 is about 6541.3827284451. The cubic root of 42789688 is about 349.7677043625.

The spelling of 42789688 in words is "forty-two million, seven hundred eighty-nine thousand, six hundred eighty-eight".