431343420 has 48 divisors (see below), whose sum is σ = 1214052000. Its totient is φ = 114428928.

The previous prime is 431343413. The next prime is 431343421. The reversal of 431343420 is 24343134.

It is a Saint-Exupery number, since it is equal to the product of the sides of a Pythagorean triangle: 965 × 579 × 772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431343421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2234844 + ... + 2235036.

It is an arithmetic number, because the mean of its divisors is an integer number (25292750).

Almost surely, 2^431343420 is an apocalyptic number.

It is an amenable number.

431343420 is an abundant number, since it is smaller than the sum of its proper divisors (782708580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

431343420 is an frugal number, since it uses more digits than its factorization.

431343420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 431343420 is about 20768.8088247738. The cubic root of 431343420 is about 755.5694547456.

Adding to 431343420 its reverse (24343134), we get a palindrome (455686554).

The spelling of 431343420 in words is "four hundred thirty-one million, three hundred forty-three thousand, four hundred twenty".