431530252 has 24 divisors (see below), whose sum is σ = 763879424. Its totient is φ = 213291792.

The previous prime is 431530247. The next prime is 431530271. The reversal of 431530252 is 252035134.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154573 + ... + 157339.

Almost surely, 2^431530252 is an apocalyptic number.

It is an amenable number.

431530252 is a deficient number, since it is larger than the sum of its proper divisors (332349172).

431530252 is a wasteful number, since it uses less digits than its factorization.

431530252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3205 (or 3203 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 431530252 is about 20773.3062366105. The cubic root of 431530252 is about 755.6785280651.

Adding to 431530252 its reverse (252035134), we get a palindrome (683565386).

The spelling of 431530252 in words is "four hundred thirty-one million, five hundred thirty thousand, two hundred fifty-two".