424543209 has 8 divisors (see below), whose sum is σ = 585576960. Its totient is φ = 273269136.

The previous prime is 424543199. The next prime is 424543241. The reversal of 424543209 is 902345424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 424543209 - 2⁷ = 424543081 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 424543209.

It is not an unprimeable number, because it can be changed into a prime (424543909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2439817 + ... + 2439990.

It is an arithmetic number, because the mean of its divisors is an integer number (73197120).

Almost surely, 2^424543209 is an apocalyptic number.

It is an amenable number.

424543209 is a deficient number, since it is larger than the sum of its proper divisors (161033751).

424543209 is a wasteful number, since it uses less digits than its factorization.

424543209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4879839.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 424543209 is about 20604.4463405353. The cubic root of 424543209 is about 751.5778391260.

The spelling of 424543209 in words is "four hundred twenty-four million, five hundred forty-three thousand, two hundred nine".