423342434 has 4 divisors (see below), whose sum is σ = 635013654. Its totient is φ = 211671216.

The previous prime is 423342427. The next prime is 423342443. The reversal of 423342434 is 434243324.

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., 340587025 + 82755409 = 18455^2 + 9097^2 .

It is a junction number, because it is equal to n+sod(n) for n = 423342397 and 423342406.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105835607 + ... + 105835610.

Almost surely, 2^423342434 is an apocalyptic number.

423342434 is a deficient number, since it is larger than the sum of its proper divisors (211671220).

423342434 is a wasteful number, since it uses less digits than its factorization.

423342434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211671219.

The product of its digits is 27648, while the sum is 29.

The square root of 423342434 is about 20575.2869724823. The cubic root of 423342434 is about 750.8685842122.

Adding to 423342434 its reverse (434243324), we get a palindrome (857585758).

The spelling of 423342434 in words is "four hundred twenty-three million, three hundred forty-two thousand, four hundred thirty-four".