42839604 has 60 divisors (see below), whose sum is σ = 117902400. Its totient is φ = 13526352.

The previous prime is 42839603. The next prime is 42839611. The reversal of 42839604 is 40693824.

It is a happy number.

42839604 is a `hidden beast` number, since 42 + 8 + 3 + 9 + 604 = 666.

42839604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42839603) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 2677 + ... + 9635.

It is an arithmetic number, because the mean of its divisors is an integer number (1965040).

Almost surely, 2^42839604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42839604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58951200).

42839604 is an abundant number, since it is smaller than the sum of its proper divisors (75062796).

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

42839604 is a wasteful number, since it uses less digits than its factorization.

42839604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6994 (or 6983 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 42839604 is about 6545.1970176611. The cubic root of 42839604 is about 349.9036578367.

The spelling of 42839604 in words is "forty-two million, eight hundred thirty-nine thousand, six hundred four".