424531 has 4 divisors (see below), whose sum is σ = 439200. Its totient is φ = 409864.

The previous prime is 424519. The next prime is 424537. The reversal of 424531 is 135424.

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 424531 - 2⁹ = 424019 is a prime.

It is a super-2 number, since 2×424531² = 360453139922, which contains 22 as substring.

It is a Duffinian number.

424531 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 424499 and 424508.

It is not an unprimeable number, because it can be changed into a prime (424537) 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, 7291 + ... + 7348.

It is an arithmetic number, because the mean of its divisors is an integer number (109800).

2⁴²⁴⁵³¹ is an apocalyptic number.

424531 is a deficient number, since it is larger than the sum of its proper divisors (14669).

424531 is a wasteful number, since it uses less digits than its factorization.

424531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14668.

The product of its digits is 480, while the sum is 19.

The square root of 424531 is about 651.5604346490. The cubic root of 424531 is about 75.1570634440.

Adding to 424531 its reverse (135424), we get a palindrome (559955).

The spelling of 424531 in words is "four hundred twenty-four thousand, five hundred thirty-one".