42584429 has 2 divisors, whose sum is σ = 42584430. Its totient is φ = 42584428.

The previous prime is 42584419. The next prime is 42584501. The reversal of 42584429 is 92448524.

It is a happy number.

42584429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22108804 + 20475625 = 4702^2 + 4525^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42584429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42584392 and 42584401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42584419) 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 as a sum of consecutive naturals, namely, 21292214 + 21292215.

It is an arithmetic number, because the mean of its divisors is an integer number (21292215).

Almost surely, 2^42584429 is an apocalyptic number.

It is an amenable number.

42584429 is a deficient number, since it is larger than the sum of its proper divisors (1).

42584429 is an equidigital number, since it uses as much as digits as its factorization.

42584429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92160, while the sum is 38.

The square root of 42584429 is about 6525.6746011428. The cubic root of 42584429 is about 349.2075376907.

The spelling of 42584429 in words is "forty-two million, five hundred eighty-four thousand, four hundred twenty-nine".