609424 has 20 divisors (see below), whose sum is σ = 1210860. Its totient is φ = 296960.

The previous prime is 609421. The next prime is 609437. The reversal of 609424 is 424906.

It can be written as a sum of positive squares in 2 ways, for example, as 19600 + 589824 = 140^2 + 768^2 .

It is a super-2 number, since 2×609424² = 742795223552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (609421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192 + ... + 1120.

It is an arithmetic number, because the mean of its divisors is an integer number (60543).

2⁶⁰⁹⁴²⁴ is an apocalyptic number.

It is an amenable number.

609424 is a deficient number, since it is larger than the sum of its proper divisors (601436).

609424 is a wasteful number, since it uses less digits than its factorization.

609424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978 (or 972 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 609424 is about 780.6561342870. The cubic root of 609424 is about 84.7825584160.

The spelling of 609424 in words is "six hundred nine thousand, four hundred twenty-four".