42020584 has 16 divisors (see below), whose sum is σ = 79136100. Its totient is φ = 20917632.

The previous prime is 42020557. The next prime is 42020597. The reversal of 42020584 is 48502024.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 41344900 + 675684 = 6430^2 + 822^2 .

It is an unprimeable number.

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, 9637 + ... + 13300.

Almost surely, 2^42020584 is an apocalyptic number.

It is an amenable number.

42020584 is a deficient number, since it is larger than the sum of its proper divisors (37115516).

42020584 is a wasteful number, since it uses less digits than its factorization.

42020584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23172 (or 23168 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 42020584 is about 6482.3285939545. The cubic root of 42020584 is about 347.6594413512.

The spelling of 42020584 in words is "forty-two million, twenty thousand, five hundred eighty-four".