42516424 has 16 divisors (see below), whose sum is σ = 80006220. Its totient is φ = 21181440.

The previous prime is 42516413. The next prime is 42516437. The reversal of 42516424 is 42461524.

42516424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 36216324 + 6300100 = 6018^2 + 2510^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42516392 and 42516401.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 7209 + ... + 11704.

Almost surely, 2^42516424 is an apocalyptic number.

It is an amenable number.

42516424 is a deficient number, since it is larger than the sum of its proper divisors (37489796).

42516424 is a wasteful number, since it uses less digits than its factorization.

42516424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19200 (or 19196 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 42516424 is about 6520.4619468255. The cubic root of 42516424 is about 349.0215502165.

Adding to 42516424 its reverse (42461524), we get a palindrome (84977948).

The spelling of 42516424 in words is "forty-two million, five hundred sixteen thousand, four hundred twenty-four".