423310309 has 4 divisors (see below), whose sum is σ = 430485120. Its totient is φ = 416135500.

The previous prime is 423310289. The next prime is 423310333. The reversal of 423310309 is 903013324.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423310309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423310369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3587317 + ... + 3587434.

It is an arithmetic number, because the mean of its divisors is an integer number (107621280).

Almost surely, 2^423310309 is an apocalyptic number.

It is an amenable number.

423310309 is a deficient number, since it is larger than the sum of its proper divisors (7174811).

423310309 is an equidigital number, since it uses as much as digits as its factorization.

423310309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7174810.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 423310309 is about 20574.5062881227. The cubic root of 423310309 is about 750.8495907122.

The spelling of 423310309 in words is "four hundred twenty-three million, three hundred ten thousand, three hundred nine".