423431332 has 6 divisors (see below), whose sum is σ = 741004838. Its totient is φ = 211715664.

The previous prime is 423431299. The next prime is 423431353. The reversal of 423431332 is 233134324.

It can be written as a sum of positive squares in only one way, i.e., 400640256 + 22791076 = 20016^2 + 4774^2 .

It is a junction number, because it is equal to n+sod(n) for n = 423431297 and 423431306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52928913 + ... + 52928920.

Almost surely, 2^423431332 is an apocalyptic number.

It is an amenable number.

423431332 is a deficient number, since it is larger than the sum of its proper divisors (317573506).

423431332 is a wasteful number, since it uses less digits than its factorization.

423431332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105857837 (or 105857835 counting only the distinct ones).

The product of its digits is 5184, while the sum is 25.

The square root of 423431332 is about 20577.4471691704. The cubic root of 423431332 is about 750.9211390222.

Adding to 423431332 its reverse (233134324), we get a palindrome (656565656).

The spelling of 423431332 in words is "four hundred twenty-three million, four hundred thirty-one thousand, three hundred thirty-two".