42424523 has 8 divisors (see below), whose sum is σ = 43868160. Its totient is φ = 40985640.

The previous prime is 42424519. The next prime is 42424561. The reversal of 42424523 is 32542424.

It is a happy number.

42424523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 42424523 - 2² = 42424519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42424492 and 42424501.

It is not an unprimeable number, because it can be changed into a prime (42424573) 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 in 7 ways as a sum of consecutive naturals, for example, 33068 + ... + 34326.

It is an arithmetic number, because the mean of its divisors is an integer number (5483520).

Almost surely, 2^42424523 is an apocalyptic number.

42424523 is a deficient number, since it is larger than the sum of its proper divisors (1443637).

42424523 is a wasteful number, since it uses less digits than its factorization.

42424523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2377.

The product of its digits is 7680, while the sum is 26.

The square root of 42424523 is about 6513.4110111369. The cubic root of 42424523 is about 348.7698939933.

Adding to 42424523 its reverse (32542424), we get a palindrome (74966947).

The spelling of 42424523 in words is "forty-two million, four hundred twenty-four thousand, five hundred twenty-three".