423405232 has 10 divisors (see below), whose sum is σ = 820347668. Its totient is φ = 211702608.

The previous prime is 423405149. The next prime is 423405233. The reversal of 423405232 is 232504324.

It is a junction number, because it is equal to n+sod(n) for n = 423405197 and 423405206.

It is not an unprimeable number, because it can be changed into a prime (423405233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13231398 + ... + 13231429.

Almost surely, 2^423405232 is an apocalyptic number.

It is an amenable number.

423405232 is a deficient number, since it is larger than the sum of its proper divisors (396942436).

423405232 is a wasteful number, since it uses less digits than its factorization.

423405232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26462835 (or 26462829 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 423405232 is about 20576.8129699426. The cubic root of 423405232 is about 750.9057099605.

Adding to 423405232 its reverse (232504324), we get a palindrome (655909556).

The spelling of 423405232 in words is "four hundred twenty-three million, four hundred five thousand, two hundred thirty-two".