431244424 has 32 divisors (see below), whose sum is σ = 872124120. Its totient is φ = 198729216.

The previous prime is 431244421. The next prime is 431244431. The reversal of 431244424 is 424442134.

It can be written as a sum of positive squares in 4 ways, for example, as 331604100 + 99640324 = 18210^2 + 9982^2 .

It is a junction number, because it is equal to n+sod(n) for n = 431244392 and 431244401.

It is not an unprimeable number, because it can be changed into a prime (431244421) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 73404 + ... + 79060.

Almost surely, 2^431244424 is an apocalyptic number.

It is an amenable number.

431244424 is an abundant number, since it is smaller than the sum of its proper divisors (440879696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

431244424 is a wasteful number, since it uses less digits than its factorization.

431244424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6409 (or 6405 counting only the distinct ones).

The product of its digits is 12288, while the sum is 28.

The square root of 431244424 is about 20766.4254025579. The cubic root of 431244424 is about 755.5116476919.

Adding to 431244424 its reverse (424442134), we get a palindrome (855686558).

The spelling of 431244424 in words is "four hundred thirty-one million, two hundred forty-four thousand, four hundred twenty-four".