42024523 has 4 divisors (see below), whose sum is σ = 44236360. Its totient is φ = 39812688.

The previous prime is 42024517. The next prime is 42024539. The reversal of 42024523 is 32542024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42024523 - 2⁵ = 42024491 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42024494 and 42024503.

It is not an unprimeable number, because it can be changed into a prime (42024503) 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, 1105890 + ... + 1105927.

It is an arithmetic number, because the mean of its divisors is an integer number (11059090).

Almost surely, 2^42024523 is an apocalyptic number.

42024523 is a deficient number, since it is larger than the sum of its proper divisors (2211837).

42024523 is a wasteful number, since it uses less digits than its factorization.

42024523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2211836.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 42024523 is about 6482.6324128397. The cubic root of 42024523 is about 347.6703041841.

Adding to 42024523 its reverse (32542024), we get a palindrome (74566547).

The spelling of 42024523 in words is "forty-two million, twenty-four thousand, five hundred twenty-three".