42584838 has 8 divisors (see below), whose sum is σ = 85169688. Its totient is φ = 14194944.

The previous prime is 42584831. The next prime is 42584863. The reversal of 42584838 is 83848524.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

42584838 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 42584838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42584831) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3548731 + ... + 3548742.

It is an arithmetic number, because the mean of its divisors is an integer number (10646211).

Almost surely, 2^42584838 is an apocalyptic number.

42584838 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42584838 is a wasteful number, since it uses less digits than its factorization.

42584838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7097478.

The product of its digits is 245760, while the sum is 42.

The square root of 42584838 is about 6525.7059388238. The cubic root of 42584838 is about 349.2086556692.

The spelling of 42584838 in words is "forty-two million, five hundred eighty-four thousand, eight hundred thirty-eight".