431443423 has 8 divisors (see below), whose sum is σ = 438855840. Its totient is φ = 424042080.

The previous prime is 431443403. The next prime is 431443427. The reversal of 431443423 is 324344134.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 431443423 - 2⁹ = 431442911 is a prime.

It is a super-2 number, since 2×431443423² = 372286854499913858, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 431443391 and 431443400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431443427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125613 + ... + 129001.

It is an arithmetic number, because the mean of its divisors is an integer number (54856980).

Almost surely, 2^431443423 is an apocalyptic number.

431443423 is a deficient number, since it is larger than the sum of its proper divisors (7412417).

431443423 is a wasteful number, since it uses less digits than its factorization.

431443423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5537.

The product of its digits is 13824, while the sum is 28.

The square root of 431443423 is about 20771.2162137897. The cubic root of 431443423 is about 755.6278408406.

Adding to 431443423 its reverse (324344134), we get a palindrome (755787557).

The spelling of 431443423 in words is "four hundred thirty-one million, four hundred forty-three thousand, four hundred twenty-three".