42584394 has 8 divisors (see below), whose sum is σ = 85168800. Its totient is φ = 14194796.

The previous prime is 42584393. The next prime is 42584407. The reversal of 42584394 is 49348524.

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

42584394 is an admirable number.

It is a super-2 number, since 2×42584394² = 3626861224694472, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42584393) 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, 3548694 + ... + 3548705.

It is an arithmetic number, because the mean of its divisors is an integer number (10646100).

Almost surely, 2^42584394 is an apocalyptic number.

42584394 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.

42584394 is a wasteful number, since it uses less digits than its factorization.

42584394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7097404.

The product of its digits is 138240, while the sum is 39.

The square root of 42584394 is about 6525.6719194271. The cubic root of 42584394 is about 349.2074420198.

The spelling of 42584394 in words is "forty-two million, five hundred eighty-four thousand, three hundred ninety-four".