523424 has 24 divisors (see below), whose sum is σ = 1124928. Its totient is φ = 237760.

The previous prime is 523417. The next prime is 523427. The reversal of 523424 is 424325.

It is a junction number, because it is equal to n+sod(n) for n = 523396 and 523405.

It is not an unprimeable number, because it can be changed into a prime (523427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392 + ... + 1095.

It is an arithmetic number, because the mean of its divisors is an integer number (46872).

2⁵²³⁴²⁴ is an apocalyptic number.

It is an amenable number.

523424 is an abundant number, since it is smaller than the sum of its proper divisors (601504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

523424 is a wasteful number, since it uses less digits than its factorization.

523424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508 (or 1500 counting only the distinct ones).

The product of its digits is 960, while the sum is 20.

The square root of 523424 is about 723.4804765852. The cubic root of 523424 is about 80.5906287401.

Adding to 523424 its reverse (424325), we get a palindrome (947749).

Subtracting from 523424 its reverse (424325), we obtain a palindrome (99099).

The spelling of 523424 in words is "five hundred twenty-three thousand, four hundred twenty-four".