431144252 has 24 divisors (see below), whose sum is σ = 940679040. Its totient is φ = 167978160.

The previous prime is 431144227. The next prime is 431144267. The reversal of 431144252 is 252441134.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 699602 + ... + 700217.

It is an arithmetic number, because the mean of its divisors is an integer number (39194960).

Almost surely, 2^431144252 is an apocalyptic number.

It is an amenable number.

431144252 is an abundant number, since it is smaller than the sum of its proper divisors (509534788).

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

431144252 is a wasteful number, since it uses less digits than its factorization.

431144252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399841 (or 1399839 counting only the distinct ones).

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

The square root of 431144252 is about 20764.0133885528. The cubic root of 431144252 is about 755.4531449270.

Adding to 431144252 its reverse (252441134), we get a palindrome (683585386).

The spelling of 431144252 in words is "four hundred thirty-one million, one hundred forty-four thousand, two hundred fifty-two".