42423424 has 32 divisors (see below), whose sum is σ = 84896640. Its totient is φ = 21116160.

The previous prime is 42423421. The next prime is 42423443. The reversal of 42423424 is 42432424.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (42423421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34077 + ... + 35299.

It is an arithmetic number, because the mean of its divisors is an integer number (2653020).

Almost surely, 2^42423424 is an apocalyptic number.

It is an amenable number.

42423424 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

42423424 is a wasteful number, since it uses less digits than its factorization.

42423424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508 (or 1496 counting only the distinct ones).

The product of its digits is 6144, while the sum is 25.

The square root of 42423424 is about 6513.3266461924. The cubic root of 42423424 is about 348.7668823591.

Adding to 42423424 its reverse (42432424), we get a palindrome (84855848).

The spelling of 42423424 in words is "forty-two million, four hundred twenty-three thousand, four hundred twenty-four".