420310343 has 16 divisors (see below), whose sum is σ = 455963520. Its totient is φ = 386086176.

The previous prime is 420310339. The next prime is 420310357. The reversal of 420310343 is 343013024.

It is a cyclic number.

It is not a de Polignac number, because 420310343 - 2² = 420310339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420310043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243080 + ... + 244802.

It is an arithmetic number, because the mean of its divisors is an integer number (28497720).

Almost surely, 2^420310343 is an apocalyptic number.

420310343 is a deficient number, since it is larger than the sum of its proper divisors (35653177).

420310343 is a wasteful number, since it uses less digits than its factorization.

420310343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2126.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 420310343 is about 20501.4717276590. The cubic root of 420310343 is about 749.0716472074.

Adding to 420310343 its reverse (343013024), we get a palindrome (763323367).

The spelling of 420310343 in words is "four hundred twenty million, three hundred ten thousand, three hundred forty-three".