431312450 has 12 divisors (see below), whose sum is σ = 802241250. Its totient is φ = 172524960.

The previous prime is 431312443. The next prime is 431312459. The reversal of 431312450 is 54213134.

It can be written as a sum of positive squares in 3 ways, for example, as 228221449 + 203091001 = 15107^2 + 14251^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (431312459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4313075 + ... + 4313174.

Almost surely, 2^431312450 is an apocalyptic number.

431312450 is a deficient number, since it is larger than the sum of its proper divisors (370928800).

431312450 is a wasteful number, since it uses less digits than its factorization.

431312450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8626261 (or 8626256 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 431312450 is about 20768.0632221688. The cubic root of 431312450 is about 755.5513712843.

Adding to 431312450 its reverse (54213134), we get a palindrome (485525584).

The spelling of 431312450 in words is "four hundred thirty-one million, three hundred twelve thousand, four hundred fifty".