423131432 has 16 divisors (see below), whose sum is σ = 793590900. Its totient is φ = 211507200.

The previous prime is 423131417. The next prime is 423131461. The reversal of 423131432 is 234131324.

It can be written as a sum of positive squares in 2 ways, for example, as 415099876 + 8031556 = 20374^2 + 2834^2 .

It is a junction number, because it is equal to n+sod(n) for n = 423131398 and 423131407.

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 in 3 ways as a sum of consecutive naturals, for example, 48182 + ... + 56282.

Almost surely, 2^423131432 is an apocalyptic number.

It is an amenable number.

423131432 is a deficient number, since it is larger than the sum of its proper divisors (370459468).

423131432 is a wasteful number, since it uses less digits than its factorization.

423131432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14636 (or 14632 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

The square root of 423131432 is about 20570.1587743022. The cubic root of 423131432 is about 750.7438143727.

Adding to 423131432 its reverse (234131324), we get a palindrome (657262756).

The spelling of 423131432 in words is "four hundred twenty-three million, one hundred thirty-one thousand, four hundred thirty-two".