423312434 has 4 divisors (see below), whose sum is σ = 634968654. Its totient is φ = 211656216.

The previous prime is 423312397. The next prime is 423312451. The reversal of 423312434 is 434213324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 274399225 + 148913209 = 16565^2 + 12203^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105828107 + ... + 105828110.

Almost surely, 2^423312434 is an apocalyptic number.

423312434 is a deficient number, since it is larger than the sum of its proper divisors (211656220).

423312434 is a wasteful number, since it uses less digits than its factorization.

423312434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211656219.

The product of its digits is 6912, while the sum is 26.

The square root of 423312434 is about 20574.5579296373. The cubic root of 423312434 is about 750.8508471213.

Adding to 423312434 its reverse (434213324), we get a palindrome (857525758).

The spelling of 423312434 in words is "four hundred twenty-three million, three hundred twelve thousand, four hundred thirty-four".