433431 has 10 divisors (see below), whose sum is σ = 647592. Its totient is φ = 288900.

The previous prime is 433429. The next prime is 433439. The reversal of 433431 is 134334.

It is not a de Polignac number, because 433431 - 2¹ = 433429 is a prime.

It is a super-2 number, since 2×433431² = 375724863522, which contains 22 as substring.

433431 is a lucky number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (433439) 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 9 ways as a sum of consecutive naturals, for example, 2595 + ... + 2756.

2⁴³³⁴³¹ is an apocalyptic number.

433431 is a deficient number, since it is larger than the sum of its proper divisors (214161).

433431 is an equidigital number, since it uses as much as digits as its factorization.

433431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5363 (or 5354 counting only the distinct ones).

The product of its digits is 432, while the sum is 18.

The square root of 433431 is about 658.3547675836. The cubic root of 433431 is about 75.6786407679.

Adding to 433431 its reverse (134334), we get a palindrome (567765).

The spelling of 433431 in words is "four hundred thirty-three thousand, four hundred thirty-one".