424389 has 12 divisors (see below), whose sum is σ = 658464. Its totient is φ = 242424.

The previous prime is 424351. The next prime is 424397. The reversal of 424389 is 983424.

It is a happy number.

It is not a de Polignac number, because 424389 - 2⁷ = 424261 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424339) 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 11 ways as a sum of consecutive naturals, for example, 1297 + ... + 1590.

It is an arithmetic number, because the mean of its divisors is an integer number (54872).

2⁴²⁴³⁸⁹ is an apocalyptic number.

424389 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

424389 is a deficient number, since it is larger than the sum of its proper divisors (234075).

424389 is a wasteful number, since it uses less digits than its factorization.

424389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2904 (or 2897 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 424389 is about 651.4514563649. The cubic root of 424389 is about 75.1486828286.

The spelling of 424389 in words is "four hundred twenty-four thousand, three hundred eighty-nine".