423042329 has 2 divisors, whose sum is σ = 423042330. Its totient is φ = 423042328.

The previous prime is 423042313. The next prime is 423042341. The reversal of 423042329 is 923240324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 401401225 + 21641104 = 20035^2 + 4652^2 .

It is a cyclic number.

It is not a de Polignac number, because 423042329 - 2⁴ = 423042313 is a prime.

It is not a weakly prime, because it can be changed into another prime (423042379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211521164 + 211521165.

It is an arithmetic number, because the mean of its divisors is an integer number (211521165).

Almost surely, 2^423042329 is an apocalyptic number.

It is an amenable number.

423042329 is a deficient number, since it is larger than the sum of its proper divisors (1).

423042329 is an equidigital number, since it uses as much as digits as its factorization.

423042329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 423042329 is about 20567.9928286646. The cubic root of 423042329 is about 750.6911134725.

The spelling of 423042329 in words is "four hundred twenty-three million, forty-two thousand, three hundred twenty-nine".