424089 has 16 divisors (see below), whose sum is σ = 638400. Its totient is φ = 278208.

The previous prime is 424079. The next prime is 424091. The reversal of 424089 is 980424.

It is not a de Polignac number, because 424089 - 2⁷ = 423961 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

424089 is a lucky number.

It is a plaindrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 424089.

It is not an unprimeable number, because it can be changed into a prime (424019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2982 + ... + 3120.

It is an arithmetic number, because the mean of its divisors is an integer number (39900).

2⁴²⁴⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

424089 is a deficient number, since it is larger than the sum of its proper divisors (214311).

424089 is a wasteful number, since it uses less digits than its factorization.

424089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 424089 is about 651.2211605899. The cubic root of 424089 is about 75.1309711543.

The spelling of 424089 in words is "four hundred twenty-four thousand, eighty-nine".