421432330432 has 14 divisors (see below), whose sum is σ = 836279780828. Its totient is φ = 210716165184.

The previous prime is 421432330409. The next prime is 421432330471. The reversal of 421432330432 is 234033234124.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 421432330394 and 421432330403.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3292440018 + ... + 3292440145.

Almost surely, 2^421432330432 is an apocalyptic number.

It is an amenable number.

421432330432 is a deficient number, since it is larger than the sum of its proper divisors (414847450396).

421432330432 is an equidigital number, since it uses as much as digits as its factorization.

421432330432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6584880175 (or 6584880165 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 421432330432 its reverse (234033234124), we get a palindrome (655465564556).

The spelling of 421432330432 in words is "four hundred twenty-one billion, four hundred thirty-two million, three hundred thirty thousand, four hundred thirty-two".