431145224 has 16 divisors (see below), whose sum is σ = 809408700. Its totient is φ = 215302912.

The previous prime is 431145193. The next prime is 431145251. The reversal of 431145224 is 422541134.

It can be written as a sum of positive squares in 2 ways, for example, as 419020900 + 12124324 = 20470^2 + 3482^2 .

It is a junction number, because it is equal to n+sod(n) for n = 431145193 and 431145202.

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, 26837 + ... + 39780.

Almost surely, 2^431145224 is an apocalyptic number.

It is an amenable number.

431145224 is a deficient number, since it is larger than the sum of its proper divisors (378263476).

431145224 is a wasteful number, since it uses less digits than its factorization.

431145224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67432 (or 67428 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 431145224 is about 20764.0367944193. The cubic root of 431145224 is about 755.4537126411.

Adding to 431145224 its reverse (422541134), we get a palindrome (853686358).

The spelling of 431145224 in words is "four hundred thirty-one million, one hundred forty-five thousand, two hundred twenty-four".