420204343 has 8 divisors (see below), whose sum is σ = 454130768. Its totient is φ = 386506944.

The previous prime is 420204329. The next prime is 420204347. The reversal of 420204343 is 343402024.

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 420204343 - 2⁹ = 420203831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420204347) 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 7 ways as a sum of consecutive naturals, for example, 53430 + ... + 60787.

It is an arithmetic number, because the mean of its divisors is an integer number (56766346).

Almost surely, 2^420204343 is an apocalyptic number.

420204343 is a deficient number, since it is larger than the sum of its proper divisors (33926425).

420204343 is a wasteful number, since it uses less digits than its factorization.

420204343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114513.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 420204343 is about 20498.8863843868. The cubic root of 420204343 is about 749.0086713042.

Adding to 420204343 its reverse (343402024), we get a palindrome (763606367).

The spelling of 420204343 in words is "four hundred twenty million, two hundred four thousand, three hundred forty-three".