423430432 has 24 divisors (see below), whose sum is σ = 834087996. Its totient is φ = 211598592.

The previous prime is 423430387. The next prime is 423430459. The reversal of 423430432 is 234034324.

It can be written as a sum of positive squares in 2 ways, for example, as 414692496 + 8737936 = 20364^2 + 2956^2 .

It is a junction number, because it is equal to n+sod(n) for n = 423430397 and 423430406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107278 + ... + 111154.

Almost surely, 2^423430432 is an apocalyptic number.

It is an amenable number.

423430432 is a deficient number, since it is larger than the sum of its proper divisors (410657564).

423430432 is a wasteful number, since it uses less digits than its factorization.

423430432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7300 (or 7292 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

The square root of 423430432 is about 20577.4253005569. The cubic root of 423430432 is about 750.9206069961.

Adding to 423430432 its reverse (234034324), we get a palindrome (657464756).

The spelling of 423430432 in words is "four hundred twenty-three million, four hundred thirty thousand, four hundred thirty-two".