423343505 has 8 divisors (see below), whose sum is σ = 547090152. Its totient is φ = 312622848.

The previous prime is 423343447. The next prime is 423343517. The reversal of 423343505 is 505343324.

It can be written as a sum of positive squares in 4 ways, for example, as 19855936 + 403487569 = 4456^2 + 20087^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 423343505 - 2⁶ = 423343441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3256424 + ... + 3256553.

It is an arithmetic number, because the mean of its divisors is an integer number (68386269).

Almost surely, 2^423343505 is an apocalyptic number.

It is an amenable number.

423343505 is a deficient number, since it is larger than the sum of its proper divisors (123746647).

423343505 is a wasteful number, since it uses less digits than its factorization.

423343505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6512995.

The product of its (nonzero) digits is 21600, while the sum is 29.

The square root of 423343505 is about 20575.3129988343. The cubic root of 423343505 is about 750.8692174108.

Adding to 423343505 its reverse (505343324), we get a palindrome (928686829).

The spelling of 423343505 in words is "four hundred twenty-three million, three hundred forty-three thousand, five hundred five".