431433441 has 12 divisors (see below), whose sum is σ = 623398932. Its totient is φ = 287522016.

The previous prime is 431433433. The next prime is 431433467. The reversal of 431433441 is 144334134.

431433441 is a `hidden beast` number, since 4 + 314 + 3 + 344 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 319158225 + 112275216 = 17865^2 + 10596^2 .

It is not a de Polignac number, because 431433441 - 2³ = 431433433 is a prime.

It is a super-2 number, since 2×431433441² = 372269628026200962, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (431433421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26575 + ... + 39611.

It is an arithmetic number, because the mean of its divisors is an integer number (51949911).

Almost surely, 2^431433441 is an apocalyptic number.

It is an amenable number.

431433441 is a deficient number, since it is larger than the sum of its proper divisors (191965491).

431433441 is a wasteful number, since it uses less digits than its factorization.

431433441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16720 (or 16717 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 431433441 is about 20770.9759279626. The cubic root of 431433441 is about 755.6220133208.

Adding to 431433441 its reverse (144334134), we get a palindrome (575767575).

The spelling of 431433441 in words is "four hundred thirty-one million, four hundred thirty-three thousand, four hundred forty-one".