42859384 has 8 divisors (see below), whose sum is σ = 80361360. Its totient is φ = 21429688.

The previous prime is 42859367. The next prime is 42859423. The reversal of 42859384 is 48395824.

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

It is a self number, because there is not a number n which added to its sum of digits gives 42859384.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2678704 + ... + 2678719.

It is an arithmetic number, because the mean of its divisors is an integer number (10045170).

Almost surely, 2^42859384 is an apocalyptic number.

It is an amenable number.

42859384 is a deficient number, since it is larger than the sum of its proper divisors (37501976).

42859384 is a wasteful number, since it uses less digits than its factorization.

42859384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5357429 (or 5357425 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

The square root of 42859384 is about 6546.7078749552. The cubic root of 42859384 is about 349.9575023231.

The spelling of 42859384 in words is "forty-two million, eight hundred fifty-nine thousand, three hundred eighty-four".