431234443 has 8 divisors (see below), whose sum is σ = 432970560. Its totient is φ = 429502920.

The previous prime is 431234399. The next prime is 431234473. The reversal of 431234443 is 344432134.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431234443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431234473) 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, 454896 + ... + 455842.

It is an arithmetic number, because the mean of its divisors is an integer number (54121320).

Almost surely, 2^431234443 is an apocalyptic number.

431234443 is a deficient number, since it is larger than the sum of its proper divisors (1736117).

431234443 is an equidigital number, since it uses as much as digits as its factorization.

431234443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2297.

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

The square root of 431234443 is about 20766.1850853738. The cubic root of 431234443 is about 755.5058189635.

Adding to 431234443 its reverse (344432134), we get a palindrome (775666577).

The spelling of 431234443 in words is "four hundred thirty-one million, two hundred thirty-four thousand, four hundred forty-three".